201216950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:534

約数の個数: 72

約数和(自身を含む): 417577440

約数和(自身を除く): 216360490

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 110, 121, 158, 242, 275, 395, 421, 550, 605, 790, 842, 869, 1210, 1738, 1975, 2105, 3025, 3950, 4210, 4345, 4631, 6050, 8690, 9262, 9559, 10525, 19118, 21050, 21725, 23155, 33259, 43450, 46310, 47795, 50941, 66518, 95590, 101882, 115775, 166295, 231550, 238975, 254705, 332590, 365849, 477950, 509410, 731698, 831475, 1273525, 1662950, 1829245, 2547050, 3658490, 4024339, 8048678, 9146225, 18292450, 20121695, 40243390, 100608475, 201216950]

約数ペア:

[(1, 201216950), (2, 100608475), (5, 40243390), (10, 20121695), (11, 18292450), (22, 9146225), (25, 8048678), (50, 4024339), (55, 3658490), (79, 2547050), (110, 1829245), (121, 1662950), (158, 1273525), (242, 831475), (275, 731698), (395, 509410), (421, 477950), (550, 365849), (605, 332590), (790, 254705), (842, 238975), (869, 231550), (1210, 166295), (1738, 115775), (1975, 101882), (2105, 95590), (3025, 66518), (3950, 50941), (4210, 47795), (4345, 46310), (4631, 43450), (6050, 33259), (8690, 23155), (9262, 21725), (9559, 21050), (10525, 19118)]