78487640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1499}}^1$

素因数の和:1545

約数の個数: 128

約数和(自身を含む): 233280000

約数和(自身を除く): 154792360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 170, 187, 220, 238, 280, 308, 340, 374, 385, 440, 476, 595, 616, 680, 748, 770, 935, 952, 1190, 1309, 1496, 1499, 1540, 1870, 2380, 2618, 2998, 3080, 3740, 4760, 5236, 5996, 6545, 7480, 7495, 10472, 10493, 11992, 13090, 14990, 16489, 20986, 25483, 26180, 29980, 32978, 41972, 50966, 52360, 52465, 59960, 65956, 82445, 83944, 101932, 104930, 115423, 127415, 131912, 164890, 178381, 203864, 209860, 230846, 254830, 280313, 329780, 356762, 419720, 461692, 509660, 560626, 577115, 659560, 713524, 891905, 923384, 1019320, 1121252, 1154230, 1401565, 1427048, 1783810, 1962191, 2242504, 2308460, 2803130, 3567620, 3924382, 4616920, 5606260, 7135240, 7848764, 9810955, 11212520, 15697528, 19621910, 39243820, 78487640]

約数ペア:

[(1, 78487640), (2, 39243820), (4, 19621910), (5, 15697528), (7, 11212520), (8, 9810955), (10, 7848764), (11, 7135240), (14, 5606260), (17, 4616920), (20, 3924382), (22, 3567620), (28, 2803130), (34, 2308460), (35, 2242504), (40, 1962191), (44, 1783810), (55, 1427048), (56, 1401565), (68, 1154230), (70, 1121252), (77, 1019320), (85, 923384), (88, 891905), (110, 713524), (119, 659560), (136, 577115), (140, 560626), (154, 509660), (170, 461692), (187, 419720), (220, 356762), (238, 329780), (280, 280313), (308, 254830), (340, 230846), (374, 209860), (385, 203864), (440, 178381), (476, 164890), (595, 131912), (616, 127415), (680, 115423), (748, 104930), (770, 101932), (935, 83944), (952, 82445), (1190, 65956), (1309, 59960), (1496, 52465), (1499, 52360), (1540, 50966), (1870, 41972), (2380, 32978), (2618, 29980), (2998, 26180), (3080, 25483), (3740, 20986), (4760, 16489), (5236, 14990), (5996, 13090), (6545, 11992), (7480, 10493), (7495, 10472)]