80911840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 204773184

約数和(自身を除く): 123861344

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 151, 160, 170, 197, 272, 302, 340, 394, 544, 604, 680, 755, 788, 985, 1208, 1360, 1510, 1576, 1970, 2416, 2567, 2720, 3020, 3152, 3349, 3940, 4832, 5134, 6040, 6304, 6698, 7880, 10268, 12080, 12835, 13396, 15760, 16745, 20536, 24160, 25670, 26792, 29747, 31520, 33490, 41072, 51340, 53584, 59494, 66980, 82144, 102680, 107168, 118988, 133960, 148735, 205360, 237976, 267920, 297470, 410720, 475952, 505699, 535840, 594940, 951904, 1011398, 1189880, 2022796, 2379760, 2528495, 4045592, 4759520, 5056990, 8091184, 10113980, 16182368, 20227960, 40455920, 80911840]

約数ペア:

[(1, 80911840), (2, 40455920), (4, 20227960), (5, 16182368), (8, 10113980), (10, 8091184), (16, 5056990), (17, 4759520), (20, 4045592), (32, 2528495), (34, 2379760), (40, 2022796), (68, 1189880), (80, 1011398), (85, 951904), (136, 594940), (151, 535840), (160, 505699), (170, 475952), (197, 410720), (272, 297470), (302, 267920), (340, 237976), (394, 205360), (544, 148735), (604, 133960), (680, 118988), (755, 107168), (788, 102680), (985, 82144), (1208, 66980), (1360, 59494), (1510, 53584), (1576, 51340), (1970, 41072), (2416, 33490), (2567, 31520), (2720, 29747), (3020, 26792), (3152, 25670), (3349, 24160), (3940, 20536), (4832, 16745), (5134, 15760), (6040, 13396), (6304, 12835), (6698, 12080), (7880, 10268)]