1296268720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{522689}}^1$

素因数の和:522733

約数の個数: 40

約数和(自身を含む): 3111050880

約数和(自身を除く): 1814782160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 522689, 1045378, 2090756, 2613445, 4181512, 5226890, 8363024, 10453780, 16203359, 20907560, 32406718, 41815120, 64813436, 81016795, 129626872, 162033590, 259253744, 324067180, 648134360, 1296268720]

約数ペア:

[(1, 1296268720), (2, 648134360), (4, 324067180), (5, 259253744), (8, 162033590), (10, 129626872), (16, 81016795), (20, 64813436), (31, 41815120), (40, 32406718), (62, 20907560), (80, 16203359), (124, 10453780), (155, 8363024), (248, 5226890), (310, 4181512), (496, 2613445), (620, 2090756), (1240, 1045378), (2480, 522689)]