19196440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 45308160

約数和(自身を除く): 26111720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 137, 155, 226, 248, 274, 310, 452, 548, 565, 620, 685, 904, 1096, 1130, 1240, 1370, 2260, 2740, 3503, 4247, 4520, 5480, 7006, 8494, 14012, 15481, 16988, 17515, 21235, 28024, 30962, 33976, 35030, 42470, 61924, 70060, 77405, 84940, 123848, 140120, 154810, 169880, 309620, 479911, 619240, 959822, 1919644, 2399555, 3839288, 4799110, 9598220, 19196440]

約数ペア:

[(1, 19196440), (2, 9598220), (4, 4799110), (5, 3839288), (8, 2399555), (10, 1919644), (20, 959822), (31, 619240), (40, 479911), (62, 309620), (113, 169880), (124, 154810), (137, 140120), (155, 123848), (226, 84940), (248, 77405), (274, 70060), (310, 61924), (452, 42470), (548, 35030), (565, 33976), (620, 30962), (685, 28024), (904, 21235), (1096, 17515), (1130, 16988), (1240, 15481), (1370, 14012), (2260, 8494), (2740, 7006), (3503, 5480), (4247, 4520)]