2020120190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 4025246400

約数和(自身を除く): 2005126210

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 349, 505, 521, 698, 1010, 1042, 1111, 1745, 2222, 2605, 3490, 3839, 5210, 5555, 5731, 7678, 11110, 11462, 19195, 28655, 35249, 38390, 52621, 57310, 70498, 105242, 176245, 181829, 263105, 352490, 363658, 387739, 526210, 578831, 775478, 909145, 1157662, 1818290, 1938695, 2000119, 2894155, 3877390, 4000238, 5788310, 10000595, 18364729, 20001190, 36729458, 91823645, 183647290, 202012019, 404024038, 1010060095, 2020120190]

約数ペア:

[(1, 2020120190), (2, 1010060095), (5, 404024038), (10, 202012019), (11, 183647290), (22, 91823645), (55, 36729458), (101, 20001190), (110, 18364729), (202, 10000595), (349, 5788310), (505, 4000238), (521, 3877390), (698, 2894155), (1010, 2000119), (1042, 1938695), (1111, 1818290), (1745, 1157662), (2222, 909145), (2605, 775478), (3490, 578831), (3839, 526210), (5210, 387739), (5555, 363658), (5731, 352490), (7678, 263105), (11110, 181829), (11462, 176245), (19195, 105242), (28655, 70498), (35249, 57310), (38390, 52621)]