20280944720

素因数分解:

$2^4\times 5^1\times {\mathrm{2267}}^1\times {\mathrm{111827}}^1$

素因数の和:114107

約数の個数: 40

約数和(自身を含む): 47174418144

約数和(自身を除く): 26893473424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2267, 4534, 9068, 11335, 18136, 22670, 36272, 45340, 90680, 111827, 181360, 223654, 447308, 559135, 894616, 1118270, 1789232, 2236540, 4473080, 8946160, 253511809, 507023618, 1014047236, 1267559045, 2028094472, 2535118090, 4056188944, 5070236180, 10140472360, 20280944720]

約数ペア:

[(1, 20280944720), (2, 10140472360), (4, 5070236180), (5, 4056188944), (8, 2535118090), (10, 2028094472), (16, 1267559045), (20, 1014047236), (40, 507023618), (80, 253511809), (2267, 8946160), (4534, 4473080), (9068, 2236540), (11335, 1789232), (18136, 1118270), (22670, 894616), (36272, 559135), (45340, 447308), (90680, 223654), (111827, 181360)]