20121247790

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{877}}^1\times {\mathrm{6689}}^1$

素因数の和:7594

約数の個数: 64

約数和(自身を含む): 42291504000

約数和(自身を除く): 22170256210

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 877, 1715, 1754, 3430, 4385, 6139, 6689, 8770, 12278, 13378, 30695, 33445, 42973, 46823, 61390, 66890, 85946, 93646, 214865, 234115, 300811, 327761, 429730, 468230, 601622, 655522, 1504055, 1638805, 2294327, 3008110, 3277610, 4588654, 5866253, 11471635, 11732506, 22943270, 29331265, 41063771, 58662530, 82127542, 205318855, 287446397, 410637710, 574892794, 1437231985, 2012124779, 2874463970, 4024249558, 10060623895, 20121247790]

約数ペア:

[(1, 20121247790), (2, 10060623895), (5, 4024249558), (7, 2874463970), (10, 2012124779), (14, 1437231985), (35, 574892794), (49, 410637710), (70, 287446397), (98, 205318855), (245, 82127542), (343, 58662530), (490, 41063771), (686, 29331265), (877, 22943270), (1715, 11732506), (1754, 11471635), (3430, 5866253), (4385, 4588654), (6139, 3277610), (6689, 3008110), (8770, 2294327), (12278, 1638805), (13378, 1504055), (30695, 655522), (33445, 601622), (42973, 468230), (46823, 429730), (61390, 327761), (66890, 300811), (85946, 234115), (93646, 214865)]