256421412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{547909}}^1$

素因数の和:547932

約数の個数: 36

約数和(自身を含む): 698037340

約数和(自身を除く): 441615928

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 547909, 1095818, 1643727, 2191636, 3287454, 4931181, 6574908, 7122817, 9862362, 14245634, 19724724, 21368451, 28491268, 42736902, 64105353, 85473804, 128210706, 256421412]

約数ペア:

[(1, 256421412), (2, 128210706), (3, 85473804), (4, 64105353), (6, 42736902), (9, 28491268), (12, 21368451), (13, 19724724), (18, 14245634), (26, 9862362), (36, 7122817), (39, 6574908), (52, 4931181), (78, 3287454), (117, 2191636), (156, 1643727), (234, 1095818), (468, 547909)]