64309840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4993}}^1$

素因数の和:5036

約数の個数: 80

約数和(自身を含む): 178345728

約数和(自身を除く): 114035888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 4993, 6440, 9986, 12880, 19972, 24965, 34951, 39944, 49930, 69902, 79888, 99860, 114839, 139804, 174755, 199720, 229678, 279608, 349510, 399440, 459356, 559216, 574195, 699020, 803873, 918712, 1148390, 1398040, 1607746, 1837424, 2296780, 2796080, 3215492, 4019365, 4593560, 6430984, 8038730, 9187120, 12861968, 16077460, 32154920, 64309840]

約数ペア:

[(1, 64309840), (2, 32154920), (4, 16077460), (5, 12861968), (7, 9187120), (8, 8038730), (10, 6430984), (14, 4593560), (16, 4019365), (20, 3215492), (23, 2796080), (28, 2296780), (35, 1837424), (40, 1607746), (46, 1398040), (56, 1148390), (70, 918712), (80, 803873), (92, 699020), (112, 574195), (115, 559216), (140, 459356), (161, 399440), (184, 349510), (230, 279608), (280, 229678), (322, 199720), (368, 174755), (460, 139804), (560, 114839), (644, 99860), (805, 79888), (920, 69902), (1288, 49930), (1610, 39944), (1840, 34951), (2576, 24965), (3220, 19972), (4993, 12880), (6440, 9986)]