81007312

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{691}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 166810752

約数和(自身を除く): 85803440

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 431, 691, 862, 1382, 1724, 2764, 3448, 5528, 6896, 7327, 11056, 11747, 14654, 23494, 29308, 46988, 58616, 93976, 117232, 187952, 297821, 595642, 1191284, 2382568, 4765136, 5062957, 10125914, 20251828, 40503656, 81007312]

約数ペア:

[(1, 81007312), (2, 40503656), (4, 20251828), (8, 10125914), (16, 5062957), (17, 4765136), (34, 2382568), (68, 1191284), (136, 595642), (272, 297821), (431, 187952), (691, 117232), (862, 93976), (1382, 58616), (1724, 46988), (2764, 29308), (3448, 23494), (5528, 14654), (6896, 11747), (7327, 11056)]