18042440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 46840680

約数和(自身を除く): 28798240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 157, 169, 170, 221, 260, 314, 338, 340, 442, 520, 628, 676, 680, 785, 845, 884, 1105, 1256, 1352, 1570, 1690, 1768, 2041, 2210, 2669, 2873, 3140, 3380, 4082, 4420, 5338, 5746, 6280, 6760, 8164, 8840, 10205, 10676, 11492, 13345, 14365, 16328, 20410, 21352, 22984, 26533, 26690, 28730, 34697, 40820, 53066, 53380, 57460, 69394, 81640, 106132, 106760, 114920, 132665, 138788, 173485, 212264, 265330, 277576, 346970, 451061, 530660, 693940, 902122, 1061320, 1387880, 1804244, 2255305, 3608488, 4510610, 9021220, 18042440]

約数ペア:

[(1, 18042440), (2, 9021220), (4, 4510610), (5, 3608488), (8, 2255305), (10, 1804244), (13, 1387880), (17, 1061320), (20, 902122), (26, 693940), (34, 530660), (40, 451061), (52, 346970), (65, 277576), (68, 265330), (85, 212264), (104, 173485), (130, 138788), (136, 132665), (157, 114920), (169, 106760), (170, 106132), (221, 81640), (260, 69394), (314, 57460), (338, 53380), (340, 53066), (442, 40820), (520, 34697), (628, 28730), (676, 26690), (680, 26533), (785, 22984), (845, 21352), (884, 20410), (1105, 16328), (1256, 14365), (1352, 13345), (1570, 11492), (1690, 10676), (1768, 10205), (2041, 8840), (2210, 8164), (2669, 6760), (2873, 6280), (3140, 5746), (3380, 5338), (4082, 4420)]