66405100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{691}}^1$

素因数の和:767

約数の個数: 54

約数和(自身を含む): 149112852

約数和(自身を除く): 82707752

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 691, 775, 961, 1382, 1550, 1922, 2764, 3100, 3455, 3844, 4805, 6910, 9610, 13820, 17275, 19220, 21421, 24025, 34550, 42842, 48050, 69100, 85684, 96100, 107105, 214210, 428420, 535525, 664051, 1071050, 1328102, 2142100, 2656204, 3320255, 6640510, 13281020, 16601275, 33202550, 66405100]

約数ペア:

[(1, 66405100), (2, 33202550), (4, 16601275), (5, 13281020), (10, 6640510), (20, 3320255), (25, 2656204), (31, 2142100), (50, 1328102), (62, 1071050), (100, 664051), (124, 535525), (155, 428420), (310, 214210), (620, 107105), (691, 96100), (775, 85684), (961, 69100), (1382, 48050), (1550, 42842), (1922, 34550), (2764, 24025), (3100, 21421), (3455, 19220), (3844, 17275), (4805, 13820), (6910, 9610)]