2019911020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{55219}}^1$

素因数の和:55318

約数の個数: 48

約数和(自身を含む): 4452940800

約数和(自身を除く): 2433029780

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 590, 620, 1180, 1829, 3658, 7316, 9145, 18290, 36580, 55219, 110438, 220876, 276095, 552190, 1104380, 1711789, 3257921, 3423578, 6515842, 6847156, 8558945, 13031684, 16289605, 17117890, 32579210, 34235780, 65158420, 100995551, 201991102, 403982204, 504977755, 1009955510, 2019911020]

約数ペア:

[(1, 2019911020), (2, 1009955510), (4, 504977755), (5, 403982204), (10, 201991102), (20, 100995551), (31, 65158420), (59, 34235780), (62, 32579210), (118, 17117890), (124, 16289605), (155, 13031684), (236, 8558945), (295, 6847156), (310, 6515842), (590, 3423578), (620, 3257921), (1180, 1711789), (1829, 1104380), (3658, 552190), (7316, 276095), (9145, 220876), (18290, 110438), (36580, 55219)]