25678160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 38603440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 79, 80, 85, 136, 158, 170, 239, 272, 316, 340, 395, 478, 632, 680, 790, 956, 1195, 1264, 1343, 1360, 1580, 1912, 2390, 2686, 3160, 3824, 4063, 4780, 5372, 6320, 6715, 8126, 9560, 10744, 13430, 16252, 18881, 19120, 20315, 21488, 26860, 32504, 37762, 40630, 53720, 65008, 75524, 81260, 94405, 107440, 151048, 162520, 188810, 302096, 320977, 325040, 377620, 641954, 755240, 1283908, 1510480, 1604885, 2567816, 3209770, 5135632, 6419540, 12839080, 25678160]

約数ペア:

[(1, 25678160), (2, 12839080), (4, 6419540), (5, 5135632), (8, 3209770), (10, 2567816), (16, 1604885), (17, 1510480), (20, 1283908), (34, 755240), (40, 641954), (68, 377620), (79, 325040), (80, 320977), (85, 302096), (136, 188810), (158, 162520), (170, 151048), (239, 107440), (272, 94405), (316, 81260), (340, 75524), (395, 65008), (478, 53720), (632, 40630), (680, 37762), (790, 32504), (956, 26860), (1195, 21488), (1264, 20315), (1343, 19120), (1360, 18881), (1580, 16252), (1912, 13430), (2390, 10744), (2686, 9560), (3160, 8126), (3824, 6715), (4063, 6320), (4780, 5372)]