19558440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{449}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 70024500

約数和(自身を除く): 50466060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 121, 132, 165, 180, 198, 220, 242, 264, 330, 360, 363, 396, 440, 449, 484, 495, 605, 660, 726, 792, 898, 968, 990, 1089, 1210, 1320, 1347, 1452, 1796, 1815, 1980, 2178, 2245, 2420, 2694, 2904, 3592, 3630, 3960, 4041, 4356, 4490, 4840, 4939, 5388, 5445, 6735, 7260, 8082, 8712, 8980, 9878, 10776, 10890, 13470, 14520, 14817, 16164, 17960, 19756, 20205, 21780, 24695, 26940, 29634, 32328, 39512, 40410, 43560, 44451, 49390, 53880, 54329, 59268, 74085, 80820, 88902, 98780, 108658, 118536, 148170, 161640, 162987, 177804, 197560, 217316, 222255, 271645, 296340, 325974, 355608, 434632, 444510, 488961, 543290, 592680, 651948, 814935, 889020, 977922, 1086580, 1303896, 1629870, 1778040, 1955844, 2173160, 2444805, 3259740, 3911688, 4889610, 6519480, 9779220, 19558440]

約数ペア:

[(1, 19558440), (2, 9779220), (3, 6519480), (4, 4889610), (5, 3911688), (6, 3259740), (8, 2444805), (9, 2173160), (10, 1955844), (11, 1778040), (12, 1629870), (15, 1303896), (18, 1086580), (20, 977922), (22, 889020), (24, 814935), (30, 651948), (33, 592680), (36, 543290), (40, 488961), (44, 444510), (45, 434632), (55, 355608), (60, 325974), (66, 296340), (72, 271645), (88, 222255), (90, 217316), (99, 197560), (110, 177804), (120, 162987), (121, 161640), (132, 148170), (165, 118536), (180, 108658), (198, 98780), (220, 88902), (242, 80820), (264, 74085), (330, 59268), (360, 54329), (363, 53880), (396, 49390), (440, 44451), (449, 43560), (484, 40410), (495, 39512), (605, 32328), (660, 29634), (726, 26940), (792, 24695), (898, 21780), (968, 20205), (990, 19756), (1089, 17960), (1210, 16164), (1320, 14817), (1347, 14520), (1452, 13470), (1796, 10890), (1815, 10776), (1980, 9878), (2178, 8980), (2245, 8712), (2420, 8082), (2694, 7260), (2904, 6735), (3592, 5445), (3630, 5388), (3960, 4939), (4041, 4840), (4356, 4490)]