128587660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{22247}}^1$

素因数の和:22290

約数の個数: 36

約数和(自身を含む): 286865712

約数和(自身を除く): 158278052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 22247, 44494, 88988, 111235, 222470, 378199, 444940, 756398, 1512796, 1890995, 3781990, 6429383, 7563980, 12858766, 25717532, 32146915, 64293830, 128587660]

約数ペア:

[(1, 128587660), (2, 64293830), (4, 32146915), (5, 25717532), (10, 12858766), (17, 7563980), (20, 6429383), (34, 3781990), (68, 1890995), (85, 1512796), (170, 756398), (289, 444940), (340, 378199), (578, 222470), (1156, 111235), (1445, 88988), (2890, 44494), (5780, 22247)]