18455840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 31077280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 467, 494, 520, 608, 760, 934, 988, 1040, 1235, 1520, 1868, 1976, 2080, 2335, 2470, 3040, 3736, 3952, 4670, 4940, 6071, 7472, 7904, 8873, 9340, 9880, 12142, 14944, 17746, 18680, 19760, 24284, 30355, 35492, 37360, 39520, 44365, 48568, 60710, 70984, 74720, 88730, 97136, 115349, 121420, 141968, 177460, 194272, 230698, 242840, 283936, 354920, 461396, 485680, 576745, 709840, 922792, 971360, 1153490, 1419680, 1845584, 2306980, 3691168, 4613960, 9227920, 18455840]

約数ペア:

[(1, 18455840), (2, 9227920), (4, 4613960), (5, 3691168), (8, 2306980), (10, 1845584), (13, 1419680), (16, 1153490), (19, 971360), (20, 922792), (26, 709840), (32, 576745), (38, 485680), (40, 461396), (52, 354920), (65, 283936), (76, 242840), (80, 230698), (95, 194272), (104, 177460), (130, 141968), (152, 121420), (160, 115349), (190, 97136), (208, 88730), (247, 74720), (260, 70984), (304, 60710), (380, 48568), (416, 44365), (467, 39520), (494, 37360), (520, 35492), (608, 30355), (760, 24284), (934, 19760), (988, 18680), (1040, 17746), (1235, 14944), (1520, 12142), (1868, 9880), (1976, 9340), (2080, 8873), (2335, 7904), (2470, 7472), (3040, 6071), (3736, 4940), (3952, 4670)]