78980460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7789}}^1$

素因数の和:7827

約数の個数: 72

約数和(自身を含む): 239495760

約数和(自身を除く): 160515300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 3380, 5070, 7789, 10140, 15578, 23367, 31156, 38945, 46734, 77890, 93468, 101257, 116835, 155780, 202514, 233670, 303771, 405028, 467340, 506285, 607542, 1012570, 1215084, 1316341, 1518855, 2025140, 2632682, 3037710, 3949023, 5265364, 6075420, 6581705, 7898046, 13163410, 15796092, 19745115, 26326820, 39490230, 78980460]

約数ペア:

[(1, 78980460), (2, 39490230), (3, 26326820), (4, 19745115), (5, 15796092), (6, 13163410), (10, 7898046), (12, 6581705), (13, 6075420), (15, 5265364), (20, 3949023), (26, 3037710), (30, 2632682), (39, 2025140), (52, 1518855), (60, 1316341), (65, 1215084), (78, 1012570), (130, 607542), (156, 506285), (169, 467340), (195, 405028), (260, 303771), (338, 233670), (390, 202514), (507, 155780), (676, 116835), (780, 101257), (845, 93468), (1014, 77890), (1690, 46734), (2028, 38945), (2535, 31156), (3380, 23367), (5070, 15578), (7789, 10140)]