180686020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 388644480

約数和(自身を除く): 207958460

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 178, 332, 356, 415, 445, 830, 890, 1223, 1660, 1780, 2446, 4892, 6115, 7387, 12230, 14774, 24460, 29548, 36935, 73870, 101509, 108847, 147740, 203018, 217694, 406036, 435388, 507545, 544235, 1015090, 1088470, 2030180, 2176940, 9034301, 18068602, 36137204, 45171505, 90343010, 180686020]

約数ペア:

[(1, 180686020), (2, 90343010), (4, 45171505), (5, 36137204), (10, 18068602), (20, 9034301), (83, 2176940), (89, 2030180), (166, 1088470), (178, 1015090), (332, 544235), (356, 507545), (415, 435388), (445, 406036), (830, 217694), (890, 203018), (1223, 147740), (1660, 108847), (1780, 101509), (2446, 73870), (4892, 36935), (6115, 29548), (7387, 24460), (12230, 14774)]