7440680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 18522000

約数和(自身を除く): 11081320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 349, 410, 520, 533, 698, 820, 1066, 1396, 1640, 1745, 2132, 2665, 2792, 3490, 4264, 4537, 5330, 6980, 9074, 10660, 13960, 14309, 18148, 21320, 22685, 28618, 36296, 45370, 57236, 71545, 90740, 114472, 143090, 181480, 186017, 286180, 372034, 572360, 744068, 930085, 1488136, 1860170, 3720340, 7440680]

約数ペア:

[(1, 7440680), (2, 3720340), (4, 1860170), (5, 1488136), (8, 930085), (10, 744068), (13, 572360), (20, 372034), (26, 286180), (40, 186017), (41, 181480), (52, 143090), (65, 114472), (82, 90740), (104, 71545), (130, 57236), (164, 45370), (205, 36296), (260, 28618), (328, 22685), (349, 21320), (410, 18148), (520, 14309), (533, 13960), (698, 10660), (820, 9074), (1066, 6980), (1396, 5330), (1640, 4537), (1745, 4264), (2132, 3490), (2665, 2792)]