51126540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{229}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 146175120

約数和(自身を除く): 95048580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 229, 244, 305, 366, 458, 610, 687, 732, 915, 916, 1145, 1220, 1374, 1830, 2290, 2748, 3435, 3660, 3721, 4580, 6870, 7442, 11163, 13740, 13969, 14884, 18605, 22326, 27938, 37210, 41907, 44652, 55815, 55876, 69845, 74420, 83814, 111630, 139690, 167628, 209535, 223260, 279380, 419070, 838140, 852109, 1704218, 2556327, 3408436, 4260545, 5112654, 8521090, 10225308, 12781635, 17042180, 25563270, 51126540]

約数ペア:

[(1, 51126540), (2, 25563270), (3, 17042180), (4, 12781635), (5, 10225308), (6, 8521090), (10, 5112654), (12, 4260545), (15, 3408436), (20, 2556327), (30, 1704218), (60, 852109), (61, 838140), (122, 419070), (183, 279380), (229, 223260), (244, 209535), (305, 167628), (366, 139690), (458, 111630), (610, 83814), (687, 74420), (732, 69845), (915, 55876), (916, 55815), (1145, 44652), (1220, 41907), (1374, 37210), (1830, 27938), (2290, 22326), (2748, 18605), (3435, 14884), (3660, 13969), (3721, 13740), (4580, 11163), (6870, 7442)]