12992220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 39901680

約数和(自身を除く): 26909460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 811, 890, 1068, 1335, 1602, 1622, 1780, 2433, 2670, 3204, 3244, 4005, 4055, 4866, 5340, 7299, 8010, 8110, 9732, 12165, 14598, 16020, 16220, 24330, 29196, 36495, 48660, 72179, 72990, 144358, 145980, 216537, 288716, 360895, 433074, 649611, 721790, 866148, 1082685, 1299222, 1443580, 2165370, 2598444, 3248055, 4330740, 6496110, 12992220]

約数ペア:

[(1, 12992220), (2, 6496110), (3, 4330740), (4, 3248055), (5, 2598444), (6, 2165370), (9, 1443580), (10, 1299222), (12, 1082685), (15, 866148), (18, 721790), (20, 649611), (30, 433074), (36, 360895), (45, 288716), (60, 216537), (89, 145980), (90, 144358), (178, 72990), (180, 72179), (267, 48660), (356, 36495), (445, 29196), (534, 24330), (801, 16220), (811, 16020), (890, 14598), (1068, 12165), (1335, 9732), (1602, 8110), (1622, 8010), (1780, 7299), (2433, 5340), (2670, 4866), (3204, 4055), (3244, 4005)]