78911560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 235569600

約数和(自身を除く): 156658040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 76, 91, 95, 98, 104, 130, 133, 140, 152, 163, 182, 190, 196, 245, 247, 260, 266, 280, 326, 364, 380, 392, 455, 490, 494, 520, 532, 637, 652, 665, 728, 760, 815, 910, 931, 980, 988, 1064, 1141, 1235, 1274, 1304, 1330, 1630, 1729, 1820, 1862, 1960, 1976, 2119, 2282, 2470, 2548, 2660, 3097, 3185, 3260, 3458, 3640, 3724, 4238, 4564, 4655, 4940, 5096, 5320, 5705, 6194, 6370, 6520, 6916, 7448, 7987, 8476, 8645, 9128, 9310, 9880, 10595, 11410, 12103, 12388, 12740, 13832, 14833, 15485, 15974, 16952, 17290, 18620, 21190, 21679, 22820, 24206, 24776, 25480, 29666, 30970, 31948, 34580, 37240, 39935, 40261, 42380, 43358, 45640, 48412, 59332, 60515, 61940, 63896, 69160, 74165, 79870, 80522, 84760, 86716, 96824, 103831, 108395, 118664, 121030, 123880, 148330, 151753, 159740, 161044, 173432, 201305, 207662, 216790, 242060, 281827, 296660, 303506, 319480, 322088, 402610, 415324, 433580, 484120, 519155, 563654, 593320, 607012, 758765, 805220, 830648, 867160, 1038310, 1127308, 1214024, 1409135, 1517530, 1610440, 1972789, 2076620, 2254616, 2818270, 3035060, 3945578, 4153240, 5636540, 6070120, 7891156, 9863945, 11273080, 15782312, 19727890, 39455780, 78911560]

約数ペア:

[(1, 78911560), (2, 39455780), (4, 19727890), (5, 15782312), (7, 11273080), (8, 9863945), (10, 7891156), (13, 6070120), (14, 5636540), (19, 4153240), (20, 3945578), (26, 3035060), (28, 2818270), (35, 2254616), (38, 2076620), (40, 1972789), (49, 1610440), (52, 1517530), (56, 1409135), (65, 1214024), (70, 1127308), (76, 1038310), (91, 867160), (95, 830648), (98, 805220), (104, 758765), (130, 607012), (133, 593320), (140, 563654), (152, 519155), (163, 484120), (182, 433580), (190, 415324), (196, 402610), (245, 322088), (247, 319480), (260, 303506), (266, 296660), (280, 281827), (326, 242060), (364, 216790), (380, 207662), (392, 201305), (455, 173432), (490, 161044), (494, 159740), (520, 151753), (532, 148330), (637, 123880), (652, 121030), (665, 118664), (728, 108395), (760, 103831), (815, 96824), (910, 86716), (931, 84760), (980, 80522), (988, 79870), (1064, 74165), (1141, 69160), (1235, 63896), (1274, 61940), (1304, 60515), (1330, 59332), (1630, 48412), (1729, 45640), (1820, 43358), (1862, 42380), (1960, 40261), (1976, 39935), (2119, 37240), (2282, 34580), (2470, 31948), (2548, 30970), (2660, 29666), (3097, 25480), (3185, 24776), (3260, 24206), (3458, 22820), (3640, 21679), (3724, 21190), (4238, 18620), (4564, 17290), (4655, 16952), (4940, 15974), (5096, 15485), (5320, 14833), (5705, 13832), (6194, 12740), (6370, 12388), (6520, 12103), (6916, 11410), (7448, 10595), (7987, 9880), (8476, 9310), (8645, 9128)]