31396040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 76734000

約数和(自身を除く): 45337960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 260, 346, 349, 520, 692, 698, 865, 1384, 1396, 1730, 1745, 2249, 2792, 3460, 3490, 4498, 4537, 6920, 6980, 8996, 9074, 11245, 13960, 17992, 18148, 22490, 22685, 36296, 44980, 45370, 60377, 89960, 90740, 120754, 181480, 241508, 301885, 483016, 603770, 784901, 1207540, 1569802, 2415080, 3139604, 3924505, 6279208, 7849010, 15698020, 31396040]

約数ペア:

[(1, 31396040), (2, 15698020), (4, 7849010), (5, 6279208), (8, 3924505), (10, 3139604), (13, 2415080), (20, 1569802), (26, 1207540), (40, 784901), (52, 603770), (65, 483016), (104, 301885), (130, 241508), (173, 181480), (260, 120754), (346, 90740), (349, 89960), (520, 60377), (692, 45370), (698, 44980), (865, 36296), (1384, 22685), (1396, 22490), (1730, 18148), (1745, 17992), (2249, 13960), (2792, 11245), (3460, 9074), (3490, 8996), (4498, 6980), (4537, 6920)]