20295240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:711

約数の個数: 128

約数和(自身を含む): 71573760

約数和(自身を除く): 51278520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 653, 740, 777, 840, 888, 1036, 1110, 1295, 1306, 1480, 1554, 1959, 2072, 2220, 2590, 2612, 3108, 3265, 3885, 3918, 4440, 4571, 5180, 5224, 6216, 6530, 7770, 7836, 9142, 9795, 10360, 13060, 13713, 15540, 15672, 18284, 19590, 22855, 24161, 26120, 27426, 31080, 36568, 39180, 45710, 48322, 54852, 68565, 72483, 78360, 91420, 96644, 109704, 120805, 137130, 144966, 169127, 182840, 193288, 241610, 274260, 289932, 338254, 362415, 483220, 507381, 548520, 579864, 676508, 724830, 845635, 966440, 1014762, 1353016, 1449660, 1691270, 2029524, 2536905, 2899320, 3382540, 4059048, 5073810, 6765080, 10147620, 20295240]

約数ペア:

[(1, 20295240), (2, 10147620), (3, 6765080), (4, 5073810), (5, 4059048), (6, 3382540), (7, 2899320), (8, 2536905), (10, 2029524), (12, 1691270), (14, 1449660), (15, 1353016), (20, 1014762), (21, 966440), (24, 845635), (28, 724830), (30, 676508), (35, 579864), (37, 548520), (40, 507381), (42, 483220), (56, 362415), (60, 338254), (70, 289932), (74, 274260), (84, 241610), (105, 193288), (111, 182840), (120, 169127), (140, 144966), (148, 137130), (168, 120805), (185, 109704), (210, 96644), (222, 91420), (259, 78360), (280, 72483), (296, 68565), (370, 54852), (420, 48322), (444, 45710), (518, 39180), (555, 36568), (653, 31080), (740, 27426), (777, 26120), (840, 24161), (888, 22855), (1036, 19590), (1110, 18284), (1295, 15672), (1306, 15540), (1480, 13713), (1554, 13060), (1959, 10360), (2072, 9795), (2220, 9142), (2590, 7836), (2612, 7770), (3108, 6530), (3265, 6216), (3885, 5224), (3918, 5180), (4440, 4571)]