16639250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 34145280

約数和(自身を除く): 17506030

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 113, 125, 155, 190, 226, 250, 310, 475, 565, 589, 775, 950, 1130, 1178, 1550, 2147, 2375, 2825, 2945, 3503, 3875, 4294, 4750, 5650, 5890, 7006, 7750, 10735, 14125, 14725, 17515, 21470, 28250, 29450, 35030, 53675, 66557, 73625, 87575, 107350, 133114, 147250, 175150, 268375, 332785, 437875, 536750, 665570, 875750, 1663925, 3327850, 8319625, 16639250]

約数ペア:

[(1, 16639250), (2, 8319625), (5, 3327850), (10, 1663925), (19, 875750), (25, 665570), (31, 536750), (38, 437875), (50, 332785), (62, 268375), (95, 175150), (113, 147250), (125, 133114), (155, 107350), (190, 87575), (226, 73625), (250, 66557), (310, 53675), (475, 35030), (565, 29450), (589, 28250), (775, 21470), (950, 17515), (1130, 14725), (1178, 14125), (1550, 10735), (2147, 7750), (2375, 7006), (2825, 5890), (2945, 5650), (3503, 4750), (3875, 4294)]