215865920

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8539}}^1$

素因数の和:8635

約数の個数: 56

約数和(自身を含む): 520598400

約数和(自身を除く): 304732480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 8539, 12640, 17078, 25280, 34156, 42695, 68312, 85390, 136624, 170780, 273248, 341560, 546496, 674581, 683120, 1349162, 1366240, 2698324, 2732480, 3372905, 5396648, 6745810, 10793296, 13491620, 21586592, 26983240, 43173184, 53966480, 107932960, 215865920]

約数ペア:

[(1, 215865920), (2, 107932960), (4, 53966480), (5, 43173184), (8, 26983240), (10, 21586592), (16, 13491620), (20, 10793296), (32, 6745810), (40, 5396648), (64, 3372905), (79, 2732480), (80, 2698324), (158, 1366240), (160, 1349162), (316, 683120), (320, 674581), (395, 546496), (632, 341560), (790, 273248), (1264, 170780), (1580, 136624), (2528, 85390), (3160, 68312), (5056, 42695), (6320, 34156), (8539, 25280), (12640, 17078)]