201062900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:945

約数の個数: 72

約数和(自身を含む): 456637440

約数和(自身を除く): 255574540

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 79, 100, 124, 155, 158, 310, 316, 395, 620, 775, 790, 821, 1550, 1580, 1642, 1975, 2449, 3100, 3284, 3950, 4105, 4898, 7900, 8210, 9796, 12245, 16420, 20525, 24490, 25451, 41050, 48980, 50902, 61225, 64859, 82100, 101804, 122450, 127255, 129718, 244900, 254510, 259436, 324295, 509020, 636275, 648590, 1272550, 1297180, 1621475, 2010629, 2545100, 3242950, 4021258, 6485900, 8042516, 10053145, 20106290, 40212580, 50265725, 100531450, 201062900]

約数ペア:

[(1, 201062900), (2, 100531450), (4, 50265725), (5, 40212580), (10, 20106290), (20, 10053145), (25, 8042516), (31, 6485900), (50, 4021258), (62, 3242950), (79, 2545100), (100, 2010629), (124, 1621475), (155, 1297180), (158, 1272550), (310, 648590), (316, 636275), (395, 509020), (620, 324295), (775, 259436), (790, 254510), (821, 244900), (1550, 129718), (1580, 127255), (1642, 122450), (1975, 101804), (2449, 82100), (3100, 64859), (3284, 61225), (3950, 50902), (4105, 48980), (4898, 41050), (7900, 25451), (8210, 24490), (9796, 20525), (12245, 16420)]