210695220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{619}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 671623680

約数和(自身を除く): 460928460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 61, 62, 90, 93, 122, 124, 155, 180, 183, 186, 244, 279, 305, 310, 366, 372, 465, 549, 558, 610, 619, 620, 732, 915, 930, 1098, 1116, 1220, 1238, 1395, 1830, 1857, 1860, 1891, 2196, 2476, 2745, 2790, 3095, 3660, 3714, 3782, 5490, 5571, 5580, 5673, 6190, 7428, 7564, 9285, 9455, 10980, 11142, 11346, 12380, 17019, 18570, 18910, 19189, 22284, 22692, 27855, 28365, 34038, 37140, 37759, 37820, 38378, 55710, 56730, 57567, 68076, 75518, 76756, 85095, 95945, 111420, 113277, 113460, 115134, 151036, 170190, 172701, 188795, 191890, 226554, 230268, 287835, 339831, 340380, 345402, 377590, 383780, 453108, 566385, 575670, 679662, 690804, 755180, 863505, 1132770, 1151340, 1170529, 1359324, 1699155, 1727010, 2265540, 2341058, 3398310, 3454020, 3511587, 4682116, 5852645, 6796620, 7023174, 10534761, 11705290, 14046348, 17557935, 21069522, 23410580, 35115870, 42139044, 52673805, 70231740, 105347610, 210695220]

約数ペア:

[(1, 210695220), (2, 105347610), (3, 70231740), (4, 52673805), (5, 42139044), (6, 35115870), (9, 23410580), (10, 21069522), (12, 17557935), (15, 14046348), (18, 11705290), (20, 10534761), (30, 7023174), (31, 6796620), (36, 5852645), (45, 4682116), (60, 3511587), (61, 3454020), (62, 3398310), (90, 2341058), (93, 2265540), (122, 1727010), (124, 1699155), (155, 1359324), (180, 1170529), (183, 1151340), (186, 1132770), (244, 863505), (279, 755180), (305, 690804), (310, 679662), (366, 575670), (372, 566385), (465, 453108), (549, 383780), (558, 377590), (610, 345402), (619, 340380), (620, 339831), (732, 287835), (915, 230268), (930, 226554), (1098, 191890), (1116, 188795), (1220, 172701), (1238, 170190), (1395, 151036), (1830, 115134), (1857, 113460), (1860, 113277), (1891, 111420), (2196, 95945), (2476, 85095), (2745, 76756), (2790, 75518), (3095, 68076), (3660, 57567), (3714, 56730), (3782, 55710), (5490, 38378), (5571, 37820), (5580, 37759), (5673, 37140), (6190, 34038), (7428, 28365), (7564, 27855), (9285, 22692), (9455, 22284), (10980, 19189), (11142, 18910), (11346, 18570), (12380, 17019)]