12920220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{401}}^1$

素因数の和:595

約数の個数: 72

約数和(自身を含む): 39508560

約数和(自身を除く): 26588340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 401, 537, 716, 802, 895, 1074, 1203, 1604, 1611, 1790, 2005, 2148, 2406, 2685, 3222, 3580, 3609, 4010, 4812, 5370, 6015, 6444, 7218, 8020, 8055, 10740, 12030, 14436, 16110, 18045, 24060, 32220, 36090, 71779, 72180, 143558, 215337, 287116, 358895, 430674, 646011, 717790, 861348, 1076685, 1292022, 1435580, 2153370, 2584044, 3230055, 4306740, 6460110, 12920220]

約数ペア:

[(1, 12920220), (2, 6460110), (3, 4306740), (4, 3230055), (5, 2584044), (6, 2153370), (9, 1435580), (10, 1292022), (12, 1076685), (15, 861348), (18, 717790), (20, 646011), (30, 430674), (36, 358895), (45, 287116), (60, 215337), (90, 143558), (179, 72180), (180, 71779), (358, 36090), (401, 32220), (537, 24060), (716, 18045), (802, 16110), (895, 14436), (1074, 12030), (1203, 10740), (1604, 8055), (1611, 8020), (1790, 7218), (2005, 6444), (2148, 6015), (2406, 5370), (2685, 4812), (3222, 4010), (3580, 3609)]