79981240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1312

約数の個数: 64

約数和(自身を含む): 189423360

約数和(自身を除く): 109442120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 1060, 1217, 1240, 1643, 2120, 2434, 3286, 4868, 6085, 6572, 8215, 9736, 12170, 13144, 16430, 24340, 32860, 37727, 48680, 64501, 65720, 75454, 129002, 150908, 188635, 258004, 301816, 322505, 377270, 516008, 645010, 754540, 1290020, 1509080, 1999531, 2580040, 3999062, 7998124, 9997655, 15996248, 19995310, 39990620, 79981240]

約数ペア:

[(1, 79981240), (2, 39990620), (4, 19995310), (5, 15996248), (8, 9997655), (10, 7998124), (20, 3999062), (31, 2580040), (40, 1999531), (53, 1509080), (62, 1290020), (106, 754540), (124, 645010), (155, 516008), (212, 377270), (248, 322505), (265, 301816), (310, 258004), (424, 188635), (530, 150908), (620, 129002), (1060, 75454), (1217, 65720), (1240, 64501), (1643, 48680), (2120, 37727), (2434, 32860), (3286, 24340), (4868, 16430), (6085, 13144), (6572, 12170), (8215, 9736)]