1318221680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{18329}}^1$

素因数の和:18402

約数の個数: 80

約数和(自身を含む): 3273004800

約数和(自身を除く): 1954783120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1798, 2320, 2480, 3596, 4495, 7192, 8990, 14384, 17980, 18329, 35960, 36658, 71920, 73316, 91645, 146632, 183290, 293264, 366580, 531541, 568199, 733160, 1063082, 1136398, 1466320, 2126164, 2272796, 2657705, 2840995, 4252328, 4545592, 5315410, 5681990, 8504656, 9091184, 10630820, 11363980, 16477771, 21261640, 22727960, 32955542, 42523280, 45455920, 65911084, 82388855, 131822168, 164777710, 263644336, 329555420, 659110840, 1318221680]

約数ペア:

[(1, 1318221680), (2, 659110840), (4, 329555420), (5, 263644336), (8, 164777710), (10, 131822168), (16, 82388855), (20, 65911084), (29, 45455920), (31, 42523280), (40, 32955542), (58, 22727960), (62, 21261640), (80, 16477771), (116, 11363980), (124, 10630820), (145, 9091184), (155, 8504656), (232, 5681990), (248, 5315410), (290, 4545592), (310, 4252328), (464, 2840995), (496, 2657705), (580, 2272796), (620, 2126164), (899, 1466320), (1160, 1136398), (1240, 1063082), (1798, 733160), (2320, 568199), (2480, 531541), (3596, 366580), (4495, 293264), (7192, 183290), (8990, 146632), (14384, 91645), (17980, 73316), (18329, 71920), (35960, 36658)]