18661760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2243}}^1$

素因数の和:2275

約数の個数: 64

約数和(自身を含む): 48066480

約数和(自身を除く): 29404720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 2243, 4160, 4486, 8320, 8972, 11215, 17944, 22430, 29159, 35888, 44860, 58318, 71776, 89720, 116636, 143552, 145795, 179440, 233272, 287104, 291590, 358880, 466544, 583180, 717760, 933088, 1166360, 1435520, 1866176, 2332720, 3732352, 4665440, 9330880, 18661760]

約数ペア:

[(1, 18661760), (2, 9330880), (4, 4665440), (5, 3732352), (8, 2332720), (10, 1866176), (13, 1435520), (16, 1166360), (20, 933088), (26, 717760), (32, 583180), (40, 466544), (52, 358880), (64, 291590), (65, 287104), (80, 233272), (104, 179440), (128, 145795), (130, 143552), (160, 116636), (208, 89720), (260, 71776), (320, 58318), (416, 44860), (520, 35888), (640, 29159), (832, 22430), (1040, 17944), (1664, 11215), (2080, 8972), (2243, 8320), (4160, 4486)]