397789520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{5531}}^1$

素因数の和:5604

約数の個数: 80

約数和(自身を含む): 987793920

約数和(自身を除く): 590004400

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, 5531, 7192, 8990, 11062, 14384, 17980, 22124, 27655, 35960, 44248, 55310, 71920, 88496, 110620, 160399, 171461, 221240, 320798, 342922, 442480, 641596, 685844, 801995, 857305, 1283192, 1371688, 1603990, 1714610, 2566384, 2743376, 3207980, 3429220, 4972369, 6415960, 6858440, 9944738, 12831920, 13716880, 19889476, 24861845, 39778952, 49723690, 79557904, 99447380, 198894760, 397789520]

約数ペア:

[(1, 397789520), (2, 198894760), (4, 99447380), (5, 79557904), (8, 49723690), (10, 39778952), (16, 24861845), (20, 19889476), (29, 13716880), (31, 12831920), (40, 9944738), (58, 6858440), (62, 6415960), (80, 4972369), (116, 3429220), (124, 3207980), (145, 2743376), (155, 2566384), (232, 1714610), (248, 1603990), (290, 1371688), (310, 1283192), (464, 857305), (496, 801995), (580, 685844), (620, 641596), (899, 442480), (1160, 342922), (1240, 320798), (1798, 221240), (2320, 171461), (2480, 160399), (3596, 110620), (4495, 88496), (5531, 71920), (7192, 55310), (8990, 44248), (11062, 35960), (14384, 27655), (17980, 22124)]