25947920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:472

約数の個数: 80

約数和(自身を含む): 65144640

約数和(自身を除く): 39196720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 397, 430, 688, 760, 794, 817, 860, 1520, 1588, 1634, 1720, 1985, 3176, 3268, 3440, 3970, 4085, 6352, 6536, 7543, 7940, 8170, 13072, 15086, 15880, 16340, 17071, 30172, 31760, 32680, 34142, 37715, 60344, 65360, 68284, 75430, 85355, 120688, 136568, 150860, 170710, 273136, 301720, 324349, 341420, 603440, 648698, 682840, 1297396, 1365680, 1621745, 2594792, 3243490, 5189584, 6486980, 12973960, 25947920]

約数ペア:

[(1, 25947920), (2, 12973960), (4, 6486980), (5, 5189584), (8, 3243490), (10, 2594792), (16, 1621745), (19, 1365680), (20, 1297396), (38, 682840), (40, 648698), (43, 603440), (76, 341420), (80, 324349), (86, 301720), (95, 273136), (152, 170710), (172, 150860), (190, 136568), (215, 120688), (304, 85355), (344, 75430), (380, 68284), (397, 65360), (430, 60344), (688, 37715), (760, 34142), (794, 32680), (817, 31760), (860, 30172), (1520, 17071), (1588, 16340), (1634, 15880), (1720, 15086), (1985, 13072), (3176, 8170), (3268, 7940), (3440, 7543), (3970, 6536), (4085, 6352)]