87129100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 196862400

約数和(自身を除く): 109733300

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 79, 82, 100, 158, 164, 205, 269, 316, 395, 410, 538, 790, 820, 1025, 1076, 1345, 1580, 1975, 2050, 2690, 3239, 3950, 4100, 5380, 6478, 6725, 7900, 11029, 12956, 13450, 16195, 21251, 22058, 26900, 32390, 42502, 44116, 55145, 64780, 80975, 85004, 106255, 110290, 161950, 212510, 220580, 275725, 323900, 425020, 531275, 551450, 871291, 1062550, 1102900, 1742582, 2125100, 3485164, 4356455, 8712910, 17425820, 21782275, 43564550, 87129100]

約数ペア:

[(1, 87129100), (2, 43564550), (4, 21782275), (5, 17425820), (10, 8712910), (20, 4356455), (25, 3485164), (41, 2125100), (50, 1742582), (79, 1102900), (82, 1062550), (100, 871291), (158, 551450), (164, 531275), (205, 425020), (269, 323900), (316, 275725), (395, 220580), (410, 212510), (538, 161950), (790, 110290), (820, 106255), (1025, 85004), (1076, 80975), (1345, 64780), (1580, 55145), (1975, 44116), (2050, 42502), (2690, 32390), (3239, 26900), (3950, 22058), (4100, 21251), (5380, 16195), (6478, 13450), (6725, 12956), (7900, 11029)]