28281630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 73801728

約数和(自身を除く): 45520098

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 127, 130, 195, 254, 381, 390, 571, 635, 762, 1142, 1270, 1651, 1713, 1905, 2855, 3302, 3426, 3810, 4953, 5710, 7423, 8255, 8565, 9906, 14846, 16510, 17130, 22269, 24765, 37115, 44538, 49530, 72517, 74230, 111345, 145034, 217551, 222690, 362585, 435102, 725170, 942721, 1087755, 1885442, 2175510, 2828163, 4713605, 5656326, 9427210, 14140815, 28281630]

約数ペア:

[(1, 28281630), (2, 14140815), (3, 9427210), (5, 5656326), (6, 4713605), (10, 2828163), (13, 2175510), (15, 1885442), (26, 1087755), (30, 942721), (39, 725170), (65, 435102), (78, 362585), (127, 222690), (130, 217551), (195, 145034), (254, 111345), (381, 74230), (390, 72517), (571, 49530), (635, 44538), (762, 37115), (1142, 24765), (1270, 22269), (1651, 17130), (1713, 16510), (1905, 14846), (2855, 9906), (3302, 8565), (3426, 8255), (3810, 7423), (4953, 5710)]