40000160

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^2\times {\mathrm{89}}^1$

素因数の和:210

約数の個数: 72

約数和(自身を含む): 97399260

約数和(自身を除く): 57399100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 89, 106, 160, 178, 212, 265, 356, 424, 445, 530, 712, 848, 890, 1060, 1424, 1696, 1780, 2120, 2809, 2848, 3560, 4240, 4717, 5618, 7120, 8480, 9434, 11236, 14045, 14240, 18868, 22472, 23585, 28090, 37736, 44944, 47170, 56180, 75472, 89888, 94340, 112360, 150944, 188680, 224720, 250001, 377360, 449440, 500002, 754720, 1000004, 1250005, 2000008, 2500010, 4000016, 5000020, 8000032, 10000040, 20000080, 40000160]

約数ペア:

[(1, 40000160), (2, 20000080), (4, 10000040), (5, 8000032), (8, 5000020), (10, 4000016), (16, 2500010), (20, 2000008), (32, 1250005), (40, 1000004), (53, 754720), (80, 500002), (89, 449440), (106, 377360), (160, 250001), (178, 224720), (212, 188680), (265, 150944), (356, 112360), (424, 94340), (445, 89888), (530, 75472), (712, 56180), (848, 47170), (890, 44944), (1060, 37736), (1424, 28090), (1696, 23585), (1780, 22472), (2120, 18868), (2809, 14240), (2848, 14045), (3560, 11236), (4240, 9434), (4717, 8480), (5618, 7120)]