78878640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19333}}^1$

素因数の和:19366

約数の個数: 80

約数和(自身を含む): 258920928

約数和(自身を除く): 180042288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 19333, 38666, 57999, 77332, 96665, 115998, 154664, 193330, 231996, 289995, 309328, 328661, 386660, 463992, 579990, 657322, 773320, 927984, 985983, 1159980, 1314644, 1546640, 1643305, 1971966, 2319960, 2629288, 3286610, 3943932, 4639920, 4929915, 5258576, 6573220, 7887864, 9859830, 13146440, 15775728, 19719660, 26292880, 39439320, 78878640]

約数ペア:

[(1, 78878640), (2, 39439320), (3, 26292880), (4, 19719660), (5, 15775728), (6, 13146440), (8, 9859830), (10, 7887864), (12, 6573220), (15, 5258576), (16, 4929915), (17, 4639920), (20, 3943932), (24, 3286610), (30, 2629288), (34, 2319960), (40, 1971966), (48, 1643305), (51, 1546640), (60, 1314644), (68, 1159980), (80, 985983), (85, 927984), (102, 773320), (120, 657322), (136, 579990), (170, 463992), (204, 386660), (240, 328661), (255, 309328), (272, 289995), (340, 231996), (408, 193330), (510, 154664), (680, 115998), (816, 96665), (1020, 77332), (1360, 57999), (2040, 38666), (4080, 19333)]