220121720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 636037920

約数和(自身を除く): 415916200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 53, 56, 65, 70, 91, 98, 104, 106, 130, 140, 163, 182, 196, 212, 245, 260, 265, 280, 326, 364, 371, 392, 424, 455, 490, 520, 530, 637, 652, 689, 728, 742, 815, 910, 980, 1060, 1141, 1274, 1304, 1378, 1484, 1630, 1820, 1855, 1960, 2119, 2120, 2282, 2548, 2597, 2756, 2968, 3185, 3260, 3445, 3640, 3710, 4238, 4564, 4823, 5096, 5194, 5512, 5705, 6370, 6520, 6890, 7420, 7987, 8476, 8639, 9128, 9646, 10388, 10595, 11410, 12740, 12985, 13780, 14833, 14840, 15974, 16952, 17278, 19292, 20776, 21190, 22820, 24115, 25480, 25970, 27560, 29666, 31948, 33761, 34556, 38584, 39935, 42380, 43195, 45640, 48230, 51940, 59332, 60473, 63896, 67522, 69112, 74165, 79870, 84760, 86390, 96460, 103831, 103880, 112307, 118664, 120946, 135044, 148330, 159740, 168805, 172780, 192920, 207662, 224614, 241892, 270088, 296660, 302365, 319480, 337610, 345560, 415324, 423311, 449228, 483784, 519155, 561535, 593320, 604730, 675220, 786149, 830648, 846622, 898456, 1038310, 1123070, 1209460, 1350440, 1572298, 1693244, 2076620, 2116555, 2246140, 2418920, 3144596, 3386488, 3930745, 4153240, 4233110, 4492280, 5503043, 6289192, 7861490, 8466220, 11006086, 15722980, 16932440, 22012172, 27515215, 31445960, 44024344, 55030430, 110060860, 220121720]

約数ペア:

[(1, 220121720), (2, 110060860), (4, 55030430), (5, 44024344), (7, 31445960), (8, 27515215), (10, 22012172), (13, 16932440), (14, 15722980), (20, 11006086), (26, 8466220), (28, 7861490), (35, 6289192), (40, 5503043), (49, 4492280), (52, 4233110), (53, 4153240), (56, 3930745), (65, 3386488), (70, 3144596), (91, 2418920), (98, 2246140), (104, 2116555), (106, 2076620), (130, 1693244), (140, 1572298), (163, 1350440), (182, 1209460), (196, 1123070), (212, 1038310), (245, 898456), (260, 846622), (265, 830648), (280, 786149), (326, 675220), (364, 604730), (371, 593320), (392, 561535), (424, 519155), (455, 483784), (490, 449228), (520, 423311), (530, 415324), (637, 345560), (652, 337610), (689, 319480), (728, 302365), (742, 296660), (815, 270088), (910, 241892), (980, 224614), (1060, 207662), (1141, 192920), (1274, 172780), (1304, 168805), (1378, 159740), (1484, 148330), (1630, 135044), (1820, 120946), (1855, 118664), (1960, 112307), (2119, 103880), (2120, 103831), (2282, 96460), (2548, 86390), (2597, 84760), (2756, 79870), (2968, 74165), (3185, 69112), (3260, 67522), (3445, 63896), (3640, 60473), (3710, 59332), (4238, 51940), (4564, 48230), (4823, 45640), (5096, 43195), (5194, 42380), (5512, 39935), (5705, 38584), (6370, 34556), (6520, 33761), (6890, 31948), (7420, 29666), (7987, 27560), (8476, 25970), (8639, 25480), (9128, 24115), (9646, 22820), (10388, 21190), (10595, 20776), (11410, 19292), (12740, 17278), (12985, 16952), (13780, 15974), (14833, 14840)]