20121480008

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{159199}}^1$

素因数の和:159310

約数の個数: 64

約数和(自身を含む): 45009024000

約数和(自身を除く): 24887543992

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 61, 74, 122, 148, 244, 259, 296, 427, 488, 518, 854, 1036, 1708, 2072, 2257, 3416, 4514, 9028, 15799, 18056, 31598, 63196, 126392, 159199, 318398, 636796, 1114393, 1273592, 2228786, 4457572, 5890363, 8915144, 9711139, 11780726, 19422278, 23561452, 38844556, 41232541, 47122904, 67977973, 77689112, 82465082, 135955946, 164930164, 271911892, 329860328, 359312143, 543823784, 718624286, 1437248572, 2515185001, 2874497144, 5030370002, 10060740004, 20121480008]

約数ペア:

[(1, 20121480008), (2, 10060740004), (4, 5030370002), (7, 2874497144), (8, 2515185001), (14, 1437248572), (28, 718624286), (37, 543823784), (56, 359312143), (61, 329860328), (74, 271911892), (122, 164930164), (148, 135955946), (244, 82465082), (259, 77689112), (296, 67977973), (427, 47122904), (488, 41232541), (518, 38844556), (854, 23561452), (1036, 19422278), (1708, 11780726), (2072, 9711139), (2257, 8915144), (3416, 5890363), (4514, 4457572), (9028, 2228786), (15799, 1273592), (18056, 1114393), (31598, 636796), (63196, 318398), (126392, 159199)]