20664408

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 53464320

約数和(自身を除く): 32799912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 71, 134, 142, 181, 201, 213, 268, 284, 362, 402, 426, 536, 543, 568, 724, 804, 852, 1086, 1448, 1608, 1704, 2172, 4344, 4757, 9514, 12127, 12851, 14271, 19028, 24254, 25702, 28542, 36381, 38056, 38553, 48508, 51404, 57084, 72762, 77106, 97016, 102808, 114168, 145524, 154212, 291048, 308424, 861017, 1722034, 2583051, 3444068, 5166102, 6888136, 10332204, 20664408]

約数ペア:

[(1, 20664408), (2, 10332204), (3, 6888136), (4, 5166102), (6, 3444068), (8, 2583051), (12, 1722034), (24, 861017), (67, 308424), (71, 291048), (134, 154212), (142, 145524), (181, 114168), (201, 102808), (213, 97016), (268, 77106), (284, 72762), (362, 57084), (402, 51404), (426, 48508), (536, 38553), (543, 38056), (568, 36381), (724, 28542), (804, 25702), (852, 24254), (1086, 19028), (1448, 14271), (1608, 12851), (1704, 12127), (2172, 9514), (4344, 4757)]