998255440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1090

約数の個数: 240

約数和(自身を含む): 3063553920

約数和(自身を除く): 2065298480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 76, 80, 91, 95, 98, 104, 112, 130, 133, 140, 152, 182, 190, 196, 208, 245, 247, 260, 266, 280, 304, 364, 380, 392, 455, 490, 494, 520, 532, 560, 637, 665, 728, 760, 784, 910, 931, 980, 988, 1031, 1040, 1064, 1235, 1274, 1330, 1456, 1520, 1729, 1820, 1862, 1960, 1976, 2062, 2128, 2470, 2548, 2660, 3185, 3458, 3640, 3724, 3920, 3952, 4124, 4655, 4940, 5096, 5155, 5320, 6370, 6916, 7217, 7280, 7448, 8248, 8645, 9310, 9880, 10192, 10310, 10640, 12103, 12740, 13403, 13832, 14434, 14896, 16496, 17290, 18620, 19589, 19760, 20620, 24206, 25480, 26806, 27664, 28868, 34580, 36085, 37240, 39178, 41240, 48412, 50519, 50960, 53612, 57736, 60515, 67015, 69160, 72170, 74480, 78356, 82480, 93821, 96824, 97945, 101038, 107224, 115472, 121030, 134030, 137123, 138320, 144340, 156712, 187642, 193648, 195890, 202076, 214448, 242060, 252595, 254657, 268060, 274246, 288680, 313424, 375284, 391780, 404152, 469105, 484120, 505190, 509314, 536120, 548492, 577360, 656747, 685615, 750568, 783560, 808304, 938210, 959861, 968240, 1010380, 1018628, 1072240, 1096984, 1273285, 1313494, 1371230, 1501136, 1567120, 1782599, 1876420, 1919722, 2020760, 2037256, 2193968, 2546570, 2626988, 2742460, 3283735, 3565198, 3752840, 3839444, 4041520, 4074512, 4799305, 5093140, 5253976, 5484920, 6567470, 7130396, 7505680, 7678888, 8912995, 9598610, 10186280, 10507952, 10969840, 12478193, 13134940, 14260792, 15357776, 17825990, 19197220, 20372560, 24956386, 26269880, 28521584, 35651980, 38394440, 49912772, 52539760, 62390965, 71303960, 76788880, 99825544, 124781930, 142607920, 199651088, 249563860, 499127720, 998255440]

約数ペア:

[(1, 998255440), (2, 499127720), (4, 249563860), (5, 199651088), (7, 142607920), (8, 124781930), (10, 99825544), (13, 76788880), (14, 71303960), (16, 62390965), (19, 52539760), (20, 49912772), (26, 38394440), (28, 35651980), (35, 28521584), (38, 26269880), (40, 24956386), (49, 20372560), (52, 19197220), (56, 17825990), (65, 15357776), (70, 14260792), (76, 13134940), (80, 12478193), (91, 10969840), (95, 10507952), (98, 10186280), (104, 9598610), (112, 8912995), (130, 7678888), (133, 7505680), (140, 7130396), (152, 6567470), (182, 5484920), (190, 5253976), (196, 5093140), (208, 4799305), (245, 4074512), (247, 4041520), (260, 3839444), (266, 3752840), (280, 3565198), (304, 3283735), (364, 2742460), (380, 2626988), (392, 2546570), (455, 2193968), (490, 2037256), (494, 2020760), (520, 1919722), (532, 1876420), (560, 1782599), (637, 1567120), (665, 1501136), (728, 1371230), (760, 1313494), (784, 1273285), (910, 1096984), (931, 1072240), (980, 1018628), (988, 1010380), (1031, 968240), (1040, 959861), (1064, 938210), (1235, 808304), (1274, 783560), (1330, 750568), (1456, 685615), (1520, 656747), (1729, 577360), (1820, 548492), (1862, 536120), (1960, 509314), (1976, 505190), (2062, 484120), (2128, 469105), (2470, 404152), (2548, 391780), (2660, 375284), (3185, 313424), (3458, 288680), (3640, 274246), (3724, 268060), (3920, 254657), (3952, 252595), (4124, 242060), (4655, 214448), (4940, 202076), (5096, 195890), (5155, 193648), (5320, 187642), (6370, 156712), (6916, 144340), (7217, 138320), (7280, 137123), (7448, 134030), (8248, 121030), (8645, 115472), (9310, 107224), (9880, 101038), (10192, 97945), (10310, 96824), (10640, 93821), (12103, 82480), (12740, 78356), (13403, 74480), (13832, 72170), (14434, 69160), (14896, 67015), (16496, 60515), (17290, 57736), (18620, 53612), (19589, 50960), (19760, 50519), (20620, 48412), (24206, 41240), (25480, 39178), (26806, 37240), (27664, 36085), (28868, 34580)]