18646960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13711}}^1$

素因数の和:13741

約数の個数: 40

約数和(自身を含む): 45907776

約数和(自身を除く): 27260816

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13711, 27422, 54844, 68555, 109688, 137110, 219376, 233087, 274220, 466174, 548440, 932348, 1096880, 1165435, 1864696, 2330870, 3729392, 4661740, 9323480, 18646960]

約数ペア:

[(1, 18646960), (2, 9323480), (4, 4661740), (5, 3729392), (8, 2330870), (10, 1864696), (16, 1165435), (17, 1096880), (20, 932348), (34, 548440), (40, 466174), (68, 274220), (80, 233087), (85, 219376), (136, 137110), (170, 109688), (272, 68555), (340, 54844), (680, 27422), (1360, 13711)]