12918880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6211}}^1$

素因数の和:6239

約数の個数: 48

約数和(自身を含む): 32873904

約数和(自身を除く): 19955024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 6211, 12422, 24844, 31055, 49688, 62110, 80743, 99376, 124220, 161486, 198752, 248440, 322972, 403715, 496880, 645944, 807430, 993760, 1291888, 1614860, 2583776, 3229720, 6459440, 12918880]

約数ペア:

[(1, 12918880), (2, 6459440), (4, 3229720), (5, 2583776), (8, 1614860), (10, 1291888), (13, 993760), (16, 807430), (20, 645944), (26, 496880), (32, 403715), (40, 322972), (52, 248440), (65, 198752), (80, 161486), (104, 124220), (130, 99376), (160, 80743), (208, 62110), (260, 49688), (416, 31055), (520, 24844), (1040, 12422), (2080, 6211)]