1657996880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{2399}}^1$

素因数の和:2628

約数の個数: 80

約数和(自身を含む): 3953318400

約数和(自身を除く): 2295321520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 163, 212, 265, 326, 424, 530, 652, 815, 848, 1060, 1304, 1630, 2120, 2399, 2608, 3260, 4240, 4798, 6520, 8639, 9596, 11995, 13040, 17278, 19192, 23990, 34556, 38384, 43195, 47980, 69112, 86390, 95960, 127147, 138224, 172780, 191920, 254294, 345560, 391037, 508588, 635735, 691120, 782074, 1017176, 1271470, 1564148, 1955185, 2034352, 2542940, 3128296, 3910370, 5085880, 6256592, 7820740, 10171760, 15641480, 20724961, 31282960, 41449922, 82899844, 103624805, 165799688, 207249610, 331599376, 414499220, 828998440, 1657996880]

約数ペア:

[(1, 1657996880), (2, 828998440), (4, 414499220), (5, 331599376), (8, 207249610), (10, 165799688), (16, 103624805), (20, 82899844), (40, 41449922), (53, 31282960), (80, 20724961), (106, 15641480), (163, 10171760), (212, 7820740), (265, 6256592), (326, 5085880), (424, 3910370), (530, 3128296), (652, 2542940), (815, 2034352), (848, 1955185), (1060, 1564148), (1304, 1271470), (1630, 1017176), (2120, 782074), (2399, 691120), (2608, 635735), (3260, 508588), (4240, 391037), (4798, 345560), (6520, 254294), (8639, 191920), (9596, 172780), (11995, 138224), (13040, 127147), (17278, 95960), (19192, 86390), (23990, 69112), (34556, 47980), (38384, 43195)]