20293810420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{940399}}^1$

素因数の和:940504

約数の個数: 48

約数和(自身を含む): 46448236800

約数和(自身を除く): 26154426380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 1079, 1660, 2158, 4316, 5395, 10790, 21580, 940399, 1880798, 3761596, 4701995, 9403990, 12225187, 18807980, 24450374, 48900748, 61125935, 78053117, 122251870, 156106234, 244503740, 312212468, 390265585, 780531170, 1014690521, 1561062340, 2029381042, 4058762084, 5073452605, 10146905210, 20293810420]

約数ペア:

[(1, 20293810420), (2, 10146905210), (4, 5073452605), (5, 4058762084), (10, 2029381042), (13, 1561062340), (20, 1014690521), (26, 780531170), (52, 390265585), (65, 312212468), (83, 244503740), (130, 156106234), (166, 122251870), (260, 78053117), (332, 61125935), (415, 48900748), (830, 24450374), (1079, 18807980), (1660, 12225187), (2158, 9403990), (4316, 4701995), (5395, 3761596), (10790, 1880798), (21580, 940399)]