20651550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:174

約数の個数: 72

約数和(自身を含む): 53476488

約数和(自身を除く): 32824938

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 37, 50, 61, 74, 75, 111, 122, 150, 183, 185, 222, 305, 366, 370, 555, 610, 915, 925, 1110, 1525, 1830, 1850, 2257, 2775, 3050, 3721, 4514, 4575, 5550, 6771, 7442, 9150, 11163, 11285, 13542, 18605, 22326, 22570, 33855, 37210, 55815, 56425, 67710, 93025, 111630, 112850, 137677, 169275, 186050, 275354, 279075, 338550, 413031, 558150, 688385, 826062, 1376770, 2065155, 3441925, 4130310, 6883850, 10325775, 20651550]

約数ペア:

[(1, 20651550), (2, 10325775), (3, 6883850), (5, 4130310), (6, 3441925), (10, 2065155), (15, 1376770), (25, 826062), (30, 688385), (37, 558150), (50, 413031), (61, 338550), (74, 279075), (75, 275354), (111, 186050), (122, 169275), (150, 137677), (183, 112850), (185, 111630), (222, 93025), (305, 67710), (366, 56425), (370, 55815), (555, 37210), (610, 33855), (915, 22570), (925, 22326), (1110, 18605), (1525, 13542), (1830, 11285), (1850, 11163), (2257, 9150), (2775, 7442), (3050, 6771), (3721, 5550), (4514, 4575)]