78649020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2441}}^1$

素因数の和:2635

約数の個数: 72

約数和(自身を含む): 239999760

約数和(自身を除く): 161350740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 1074, 1611, 1790, 2148, 2441, 2685, 3222, 3580, 4882, 5370, 6444, 7323, 8055, 9764, 10740, 12205, 14646, 16110, 21969, 24410, 29292, 32220, 36615, 43938, 48820, 73230, 87876, 109845, 146460, 219690, 436939, 439380, 873878, 1310817, 1747756, 2184695, 2621634, 3932451, 4369390, 5243268, 6554085, 7864902, 8738780, 13108170, 15729804, 19662255, 26216340, 39324510, 78649020]

約数ペア:

[(1, 78649020), (2, 39324510), (3, 26216340), (4, 19662255), (5, 15729804), (6, 13108170), (9, 8738780), (10, 7864902), (12, 6554085), (15, 5243268), (18, 4369390), (20, 3932451), (30, 2621634), (36, 2184695), (45, 1747756), (60, 1310817), (90, 873878), (179, 439380), (180, 436939), (358, 219690), (537, 146460), (716, 109845), (895, 87876), (1074, 73230), (1611, 48820), (1790, 43938), (2148, 36615), (2441, 32220), (2685, 29292), (3222, 24410), (3580, 21969), (4882, 16110), (5370, 14646), (6444, 12205), (7323, 10740), (8055, 9764)]