66446900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 157489920

約数和(自身を除く): 91043020

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 260, 316, 325, 395, 647, 650, 790, 1027, 1294, 1300, 1580, 1975, 2054, 2588, 3235, 3950, 4108, 5135, 6470, 7900, 8411, 10270, 12940, 16175, 16822, 20540, 25675, 32350, 33644, 42055, 51113, 51350, 64700, 84110, 102226, 102700, 168220, 204452, 210275, 255565, 420550, 511130, 664469, 841100, 1022260, 1277825, 1328938, 2555650, 2657876, 3322345, 5111300, 6644690, 13289380, 16611725, 33223450, 66446900]

約数ペア:

[(1, 66446900), (2, 33223450), (4, 16611725), (5, 13289380), (10, 6644690), (13, 5111300), (20, 3322345), (25, 2657876), (26, 2555650), (50, 1328938), (52, 1277825), (65, 1022260), (79, 841100), (100, 664469), (130, 511130), (158, 420550), (260, 255565), (316, 210275), (325, 204452), (395, 168220), (647, 102700), (650, 102226), (790, 84110), (1027, 64700), (1294, 51350), (1300, 51113), (1580, 42055), (1975, 33644), (2054, 32350), (2588, 25675), (3235, 20540), (3950, 16822), (4108, 16175), (5135, 12940), (6470, 10270), (7900, 8411)]