81379920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3169}}^1$

素因数の和:3292

約数の個数: 80

約数和(自身を含む): 254715840

約数和(自身を除く): 173335920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 107, 120, 214, 240, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1712, 2140, 2568, 3169, 3210, 4280, 5136, 6338, 6420, 8560, 9507, 12676, 12840, 15845, 19014, 25352, 25680, 31690, 38028, 47535, 50704, 63380, 76056, 95070, 126760, 152112, 190140, 253520, 339083, 380280, 678166, 760560, 1017249, 1356332, 1695415, 2034498, 2712664, 3390830, 4068996, 5086245, 5425328, 6781660, 8137992, 10172490, 13563320, 16275984, 20344980, 27126640, 40689960, 81379920]

約数ペア:

[(1, 81379920), (2, 40689960), (3, 27126640), (4, 20344980), (5, 16275984), (6, 13563320), (8, 10172490), (10, 8137992), (12, 6781660), (15, 5425328), (16, 5086245), (20, 4068996), (24, 3390830), (30, 2712664), (40, 2034498), (48, 1695415), (60, 1356332), (80, 1017249), (107, 760560), (120, 678166), (214, 380280), (240, 339083), (321, 253520), (428, 190140), (535, 152112), (642, 126760), (856, 95070), (1070, 76056), (1284, 63380), (1605, 50704), (1712, 47535), (2140, 38028), (2568, 31690), (3169, 25680), (3210, 25352), (4280, 19014), (5136, 15845), (6338, 12840), (6420, 12676), (8560, 9507)]