20354361050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{44789}}^1$

素因数の和:45011

約数の個数: 48

約数和(自身を含む): 38738871000

約数和(自身を除く): 18384509950

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 149, 298, 305, 610, 745, 1490, 1525, 3050, 3725, 7450, 9089, 18178, 44789, 45445, 89578, 90890, 223945, 227225, 447890, 454450, 1119725, 2239450, 2732129, 5464258, 6673561, 13347122, 13660645, 27321290, 33367805, 66735610, 68303225, 136606450, 166839025, 333678050, 407087221, 814174442, 2035436105, 4070872210, 10177180525, 20354361050]

約数ペア:

[(1, 20354361050), (2, 10177180525), (5, 4070872210), (10, 2035436105), (25, 814174442), (50, 407087221), (61, 333678050), (122, 166839025), (149, 136606450), (298, 68303225), (305, 66735610), (610, 33367805), (745, 27321290), (1490, 13660645), (1525, 13347122), (3050, 6673561), (3725, 5464258), (7450, 2732129), (9089, 2239450), (18178, 1119725), (44789, 454450), (45445, 447890), (89578, 227225), (90890, 223945)]