129055480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 301824000

約数和(自身を除く): 172768520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 199, 248, 310, 398, 523, 620, 796, 995, 1046, 1240, 1592, 1990, 2092, 2615, 3980, 4184, 5230, 6169, 7960, 10460, 12338, 16213, 20920, 24676, 30845, 32426, 49352, 61690, 64852, 81065, 104077, 123380, 129704, 162130, 208154, 246760, 324260, 416308, 520385, 648520, 832616, 1040770, 2081540, 3226387, 4163080, 6452774, 12905548, 16131935, 25811096, 32263870, 64527740, 129055480]

約数ペア:

[(1, 129055480), (2, 64527740), (4, 32263870), (5, 25811096), (8, 16131935), (10, 12905548), (20, 6452774), (31, 4163080), (40, 3226387), (62, 2081540), (124, 1040770), (155, 832616), (199, 648520), (248, 520385), (310, 416308), (398, 324260), (523, 246760), (620, 208154), (796, 162130), (995, 129704), (1046, 123380), (1240, 104077), (1592, 81065), (1990, 64852), (2092, 61690), (2615, 49352), (3980, 32426), (4184, 30845), (5230, 24676), (6169, 20920), (7960, 16213), (10460, 12338)]