16828040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 40158720

約数和(自身を除く): 23330680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 331, 410, 620, 662, 820, 1240, 1271, 1324, 1640, 1655, 2542, 2648, 3310, 5084, 6355, 6620, 10168, 10261, 12710, 13240, 13571, 20522, 25420, 27142, 41044, 50840, 51305, 54284, 67855, 82088, 102610, 108568, 135710, 205220, 271420, 410440, 420701, 542840, 841402, 1682804, 2103505, 3365608, 4207010, 8414020, 16828040]

約数ペア:

[(1, 16828040), (2, 8414020), (4, 4207010), (5, 3365608), (8, 2103505), (10, 1682804), (20, 841402), (31, 542840), (40, 420701), (41, 410440), (62, 271420), (82, 205220), (124, 135710), (155, 108568), (164, 102610), (205, 82088), (248, 67855), (310, 54284), (328, 51305), (331, 50840), (410, 41044), (620, 27142), (662, 25420), (820, 20522), (1240, 13571), (1271, 13240), (1324, 12710), (1640, 10261), (1655, 10168), (2542, 6620), (2648, 6355), (3310, 5084)]