389775320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:633

約数の個数: 128

約数和(自身を含む): 1024565760

約数和(自身を除く): 634790440

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 107, 110, 136, 170, 187, 214, 220, 340, 374, 428, 440, 487, 535, 680, 748, 856, 935, 974, 1070, 1177, 1496, 1819, 1870, 1948, 2140, 2354, 2435, 3638, 3740, 3896, 4280, 4708, 4870, 5357, 5885, 7276, 7480, 8279, 9095, 9416, 9740, 10714, 11770, 14552, 16558, 18190, 19480, 20009, 21428, 23540, 26785, 33116, 36380, 40018, 41395, 42856, 47080, 52109, 53570, 66232, 72760, 80036, 82790, 91069, 100045, 104218, 107140, 160072, 165580, 182138, 200090, 208436, 214280, 260545, 331160, 364276, 400180, 416872, 455345, 521090, 573199, 728552, 800360, 885853, 910690, 1042180, 1146398, 1771706, 1821380, 2084360, 2292796, 2865995, 3543412, 3642760, 4429265, 4585592, 5731990, 7086824, 8858530, 9744383, 11463980, 17717060, 19488766, 22927960, 35434120, 38977532, 48721915, 77955064, 97443830, 194887660, 389775320]

約数ペア:

[(1, 389775320), (2, 194887660), (4, 97443830), (5, 77955064), (8, 48721915), (10, 38977532), (11, 35434120), (17, 22927960), (20, 19488766), (22, 17717060), (34, 11463980), (40, 9744383), (44, 8858530), (55, 7086824), (68, 5731990), (85, 4585592), (88, 4429265), (107, 3642760), (110, 3543412), (136, 2865995), (170, 2292796), (187, 2084360), (214, 1821380), (220, 1771706), (340, 1146398), (374, 1042180), (428, 910690), (440, 885853), (487, 800360), (535, 728552), (680, 573199), (748, 521090), (856, 455345), (935, 416872), (974, 400180), (1070, 364276), (1177, 331160), (1496, 260545), (1819, 214280), (1870, 208436), (1948, 200090), (2140, 182138), (2354, 165580), (2435, 160072), (3638, 107140), (3740, 104218), (3896, 100045), (4280, 91069), (4708, 82790), (4870, 80036), (5357, 72760), (5885, 66232), (7276, 53570), (7480, 52109), (8279, 47080), (9095, 42856), (9416, 41395), (9740, 40018), (10714, 36380), (11770, 33116), (14552, 26785), (16558, 23540), (18190, 21428), (19480, 20009)]