129207380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{769}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 281487360

約数和(自身を除く): 152279980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 271, 310, 542, 620, 769, 1084, 1355, 1538, 2710, 3076, 3845, 5420, 7690, 8401, 15380, 16802, 23839, 33604, 42005, 47678, 84010, 95356, 119195, 168020, 208399, 238390, 416798, 476780, 833596, 1041995, 2083990, 4167980, 6460369, 12920738, 25841476, 32301845, 64603690, 129207380]

約数ペア:

[(1, 129207380), (2, 64603690), (4, 32301845), (5, 25841476), (10, 12920738), (20, 6460369), (31, 4167980), (62, 2083990), (124, 1041995), (155, 833596), (271, 476780), (310, 416798), (542, 238390), (620, 208399), (769, 168020), (1084, 119195), (1355, 95356), (1538, 84010), (2710, 47678), (3076, 42005), (3845, 33604), (5420, 23839), (7690, 16802), (8401, 15380)]