20002710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:478

約数の個数: 128

約数和(自身を含む): 62705664

約数和(自身を除く): 42702954

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 21, 26, 30, 34, 35, 39, 42, 51, 65, 70, 78, 85, 91, 102, 105, 119, 130, 170, 182, 195, 210, 221, 238, 255, 273, 357, 390, 431, 442, 455, 510, 546, 595, 663, 714, 862, 910, 1105, 1190, 1293, 1326, 1365, 1547, 1785, 2155, 2210, 2586, 2730, 3017, 3094, 3315, 3570, 4310, 4641, 5603, 6034, 6465, 6630, 7327, 7735, 9051, 9282, 11206, 12930, 14654, 15085, 15470, 16809, 18102, 21981, 23205, 28015, 30170, 33618, 36635, 39221, 43962, 45255, 46410, 51289, 56030, 73270, 78442, 84045, 90510, 95251, 102578, 109905, 117663, 153867, 168090, 190502, 196105, 219810, 235326, 256445, 285753, 307734, 392210, 476255, 512890, 571506, 588315, 666757, 769335, 952510, 1176630, 1333514, 1428765, 1538670, 2000271, 2857530, 3333785, 4000542, 6667570, 10001355, 20002710]

約数ペア:

[(1, 20002710), (2, 10001355), (3, 6667570), (5, 4000542), (6, 3333785), (7, 2857530), (10, 2000271), (13, 1538670), (14, 1428765), (15, 1333514), (17, 1176630), (21, 952510), (26, 769335), (30, 666757), (34, 588315), (35, 571506), (39, 512890), (42, 476255), (51, 392210), (65, 307734), (70, 285753), (78, 256445), (85, 235326), (91, 219810), (102, 196105), (105, 190502), (119, 168090), (130, 153867), (170, 117663), (182, 109905), (195, 102578), (210, 95251), (221, 90510), (238, 84045), (255, 78442), (273, 73270), (357, 56030), (390, 51289), (431, 46410), (442, 45255), (455, 43962), (510, 39221), (546, 36635), (595, 33618), (663, 30170), (714, 28015), (862, 23205), (910, 21981), (1105, 18102), (1190, 16809), (1293, 15470), (1326, 15085), (1365, 14654), (1547, 12930), (1785, 11206), (2155, 9282), (2210, 9051), (2586, 7735), (2730, 7327), (3017, 6630), (3094, 6465), (3315, 6034), (3570, 5603), (4310, 4641)]