645901256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{80657}}^1$

素因数の和:80694

約数の個数: 64

約数和(自身を含む): 1626065280

約数和(自身を除く): 980164024

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 4004, 8008, 80657, 161314, 322628, 564599, 645256, 887227, 1048541, 1129198, 1774454, 2097082, 2258396, 3548908, 4194164, 4516792, 6210589, 7097816, 7339787, 8388328, 11533951, 12421178, 14679574, 23067902, 24842356, 29359148, 46135804, 49684712, 58718296, 80737657, 92271608, 161475314, 322950628, 645901256]

約数ペア:

[(1, 645901256), (2, 322950628), (4, 161475314), (7, 92271608), (8, 80737657), (11, 58718296), (13, 49684712), (14, 46135804), (22, 29359148), (26, 24842356), (28, 23067902), (44, 14679574), (52, 12421178), (56, 11533951), (77, 8388328), (88, 7339787), (91, 7097816), (104, 6210589), (143, 4516792), (154, 4194164), (182, 3548908), (286, 2258396), (308, 2097082), (364, 1774454), (572, 1129198), (616, 1048541), (728, 887227), (1001, 645256), (1144, 564599), (2002, 322628), (4004, 161314), (8008, 80657)]