628830040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{5021}}^1$

素因数の和:5164

約数の個数: 64

約数和(自身を含む): 1475262720

約数和(自身を除く): 846432680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 404, 505, 620, 808, 1010, 1240, 2020, 3131, 4040, 5021, 6262, 10042, 12524, 15655, 20084, 25048, 25105, 31310, 40168, 50210, 62620, 100420, 125240, 155651, 200840, 311302, 507121, 622604, 778255, 1014242, 1245208, 1556510, 2028484, 2535605, 3113020, 4056968, 5071210, 6226040, 10142420, 15720751, 20284840, 31441502, 62883004, 78603755, 125766008, 157207510, 314415020, 628830040]

約数ペア:

[(1, 628830040), (2, 314415020), (4, 157207510), (5, 125766008), (8, 78603755), (10, 62883004), (20, 31441502), (31, 20284840), (40, 15720751), (62, 10142420), (101, 6226040), (124, 5071210), (155, 4056968), (202, 3113020), (248, 2535605), (310, 2028484), (404, 1556510), (505, 1245208), (620, 1014242), (808, 778255), (1010, 622604), (1240, 507121), (2020, 311302), (3131, 200840), (4040, 155651), (5021, 125240), (6262, 100420), (10042, 62620), (12524, 50210), (15655, 40168), (20084, 31310), (25048, 25105)]