83894840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 193536000

約数和(自身を除く): 109641160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 139, 158, 191, 278, 316, 382, 395, 556, 632, 695, 764, 790, 955, 1112, 1390, 1528, 1580, 1910, 2780, 3160, 3820, 5560, 7640, 10981, 15089, 21962, 26549, 30178, 43924, 53098, 54905, 60356, 75445, 87848, 106196, 109810, 120712, 132745, 150890, 212392, 219620, 265490, 301780, 439240, 530980, 603560, 1061960, 2097371, 4194742, 8389484, 10486855, 16778968, 20973710, 41947420, 83894840]

約数ペア:

[(1, 83894840), (2, 41947420), (4, 20973710), (5, 16778968), (8, 10486855), (10, 8389484), (20, 4194742), (40, 2097371), (79, 1061960), (139, 603560), (158, 530980), (191, 439240), (278, 301780), (316, 265490), (382, 219620), (395, 212392), (556, 150890), (632, 132745), (695, 120712), (764, 109810), (790, 106196), (955, 87848), (1112, 75445), (1390, 60356), (1528, 54905), (1580, 53098), (1910, 43924), (2780, 30178), (3160, 26549), (3820, 21962), (5560, 15089), (7640, 10981)]