128416880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1074

約数の個数: 80

約数和(自身を含む): 314337024

約数和(自身を除く): 185920144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 53, 62, 80, 106, 124, 155, 212, 248, 265, 310, 424, 496, 530, 620, 848, 977, 1060, 1240, 1643, 1954, 2120, 2480, 3286, 3908, 4240, 4885, 6572, 7816, 8215, 9770, 13144, 15632, 16430, 19540, 26288, 30287, 32860, 39080, 51781, 60574, 65720, 78160, 103562, 121148, 131440, 151435, 207124, 242296, 258905, 302870, 414248, 484592, 517810, 605740, 828496, 1035620, 1211480, 1605211, 2071240, 2422960, 3210422, 4142480, 6420844, 8026055, 12841688, 16052110, 25683376, 32104220, 64208440, 128416880]

約数ペア:

[(1, 128416880), (2, 64208440), (4, 32104220), (5, 25683376), (8, 16052110), (10, 12841688), (16, 8026055), (20, 6420844), (31, 4142480), (40, 3210422), (53, 2422960), (62, 2071240), (80, 1605211), (106, 1211480), (124, 1035620), (155, 828496), (212, 605740), (248, 517810), (265, 484592), (310, 414248), (424, 302870), (496, 258905), (530, 242296), (620, 207124), (848, 151435), (977, 131440), (1060, 121148), (1240, 103562), (1643, 78160), (1954, 65720), (2120, 60574), (2480, 51781), (3286, 39080), (3908, 32860), (4240, 30287), (4885, 26288), (6572, 19540), (7816, 16430), (8215, 15632), (9770, 13144)]