12839080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 18264920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 79, 85, 136, 158, 170, 239, 316, 340, 395, 478, 632, 680, 790, 956, 1195, 1343, 1580, 1912, 2390, 2686, 3160, 4063, 4780, 5372, 6715, 8126, 9560, 10744, 13430, 16252, 18881, 20315, 26860, 32504, 37762, 40630, 53720, 75524, 81260, 94405, 151048, 162520, 188810, 320977, 377620, 641954, 755240, 1283908, 1604885, 2567816, 3209770, 6419540, 12839080]

約数ペア:

[(1, 12839080), (2, 6419540), (4, 3209770), (5, 2567816), (8, 1604885), (10, 1283908), (17, 755240), (20, 641954), (34, 377620), (40, 320977), (68, 188810), (79, 162520), (85, 151048), (136, 94405), (158, 81260), (170, 75524), (239, 53720), (316, 40630), (340, 37762), (395, 32504), (478, 26860), (632, 20315), (680, 18881), (790, 16252), (956, 13430), (1195, 10744), (1343, 9560), (1580, 8126), (1912, 6715), (2390, 5372), (2686, 4780), (3160, 4063)]