71284240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:368

約数の個数: 80

約数和(自身を含む): 172238976

約数和(自身を除く): 100954736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 103, 164, 205, 206, 211, 328, 410, 412, 422, 515, 656, 820, 824, 844, 1030, 1055, 1640, 1648, 1688, 2060, 2110, 3280, 3376, 4120, 4220, 4223, 8240, 8440, 8446, 8651, 16880, 16892, 17302, 21115, 21733, 33784, 34604, 42230, 43255, 43466, 67568, 69208, 84460, 86510, 86932, 108665, 138416, 168920, 173020, 173864, 217330, 337840, 346040, 347728, 434660, 692080, 869320, 891053, 1738640, 1782106, 3564212, 4455265, 7128424, 8910530, 14256848, 17821060, 35642120, 71284240]

約数ペア:

[(1, 71284240), (2, 35642120), (4, 17821060), (5, 14256848), (8, 8910530), (10, 7128424), (16, 4455265), (20, 3564212), (40, 1782106), (41, 1738640), (80, 891053), (82, 869320), (103, 692080), (164, 434660), (205, 347728), (206, 346040), (211, 337840), (328, 217330), (410, 173864), (412, 173020), (422, 168920), (515, 138416), (656, 108665), (820, 86932), (824, 86510), (844, 84460), (1030, 69208), (1055, 67568), (1640, 43466), (1648, 43255), (1688, 42230), (2060, 34604), (2110, 33784), (3280, 21733), (3376, 21115), (4120, 17302), (4220, 16892), (4223, 16880), (8240, 8651), (8440, 8446)]