128388160

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{953}}^1$

素因数の和:1391

約数の個数: 56

約数和(自身を含む): 306772056

約数和(自身を除く): 178383896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 842, 953, 1684, 1906, 2105, 3368, 3812, 4210, 4765, 6736, 7624, 8420, 9530, 13472, 15248, 16840, 19060, 26944, 30496, 33680, 38120, 60992, 67360, 76240, 134720, 152480, 304960, 401213, 802426, 1604852, 2006065, 3209704, 4012130, 6419408, 8024260, 12838816, 16048520, 25677632, 32097040, 64194080, 128388160]

約数ペア:

[(1, 128388160), (2, 64194080), (4, 32097040), (5, 25677632), (8, 16048520), (10, 12838816), (16, 8024260), (20, 6419408), (32, 4012130), (40, 3209704), (64, 2006065), (80, 1604852), (160, 802426), (320, 401213), (421, 304960), (842, 152480), (953, 134720), (1684, 76240), (1906, 67360), (2105, 60992), (3368, 38120), (3812, 33680), (4210, 30496), (4765, 26944), (6736, 19060), (7624, 16840), (8420, 15248), (9530, 13472)]