12868720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5189}}^1$

素因数の和:5233

約数の個数: 40

約数和(自身を含む): 30890880

約数和(自身を除く): 18022160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5189, 10378, 20756, 25945, 41512, 51890, 83024, 103780, 160859, 207560, 321718, 415120, 643436, 804295, 1286872, 1608590, 2573744, 3217180, 6434360, 12868720]

約数ペア:

[(1, 12868720), (2, 6434360), (4, 3217180), (5, 2573744), (8, 1608590), (10, 1286872), (16, 804295), (20, 643436), (31, 415120), (40, 321718), (62, 207560), (80, 160859), (124, 103780), (155, 83024), (248, 51890), (310, 41512), (496, 25945), (620, 20756), (1240, 10378), (2480, 5189)]