18714280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 50349600

約数和(自身を除く): 31635320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 29, 34, 40, 52, 58, 65, 68, 73, 85, 104, 116, 130, 136, 145, 146, 170, 221, 232, 260, 290, 292, 340, 365, 377, 442, 493, 520, 580, 584, 680, 730, 754, 884, 949, 986, 1105, 1160, 1241, 1460, 1508, 1768, 1885, 1898, 1972, 2117, 2210, 2465, 2482, 2920, 3016, 3770, 3796, 3944, 4234, 4420, 4745, 4930, 4964, 6205, 6409, 7540, 7592, 8468, 8840, 9490, 9860, 9928, 10585, 12410, 12818, 15080, 16133, 16936, 18980, 19720, 21170, 24820, 25636, 27521, 32045, 32266, 35989, 37960, 42340, 49640, 51272, 55042, 64090, 64532, 71978, 80665, 84680, 110084, 128180, 129064, 137605, 143956, 161330, 179945, 220168, 256360, 275210, 287912, 322660, 359890, 467857, 550420, 645320, 719780, 935714, 1100840, 1439560, 1871428, 2339285, 3742856, 4678570, 9357140, 18714280]

約数ペア:

[(1, 18714280), (2, 9357140), (4, 4678570), (5, 3742856), (8, 2339285), (10, 1871428), (13, 1439560), (17, 1100840), (20, 935714), (26, 719780), (29, 645320), (34, 550420), (40, 467857), (52, 359890), (58, 322660), (65, 287912), (68, 275210), (73, 256360), (85, 220168), (104, 179945), (116, 161330), (130, 143956), (136, 137605), (145, 129064), (146, 128180), (170, 110084), (221, 84680), (232, 80665), (260, 71978), (290, 64532), (292, 64090), (340, 55042), (365, 51272), (377, 49640), (442, 42340), (493, 37960), (520, 35989), (580, 32266), (584, 32045), (680, 27521), (730, 25636), (754, 24820), (884, 21170), (949, 19720), (986, 18980), (1105, 16936), (1160, 16133), (1241, 15080), (1460, 12818), (1508, 12410), (1768, 10585), (1885, 9928), (1898, 9860), (1972, 9490), (2117, 8840), (2210, 8468), (2465, 7592), (2482, 7540), (2920, 6409), (3016, 6205), (3770, 4964), (3796, 4930), (3944, 4745), (4234, 4420)]