89521700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 201653760

約数和(自身を除く): 112132060

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 109, 172, 191, 215, 218, 382, 430, 436, 545, 764, 860, 955, 1075, 1090, 1910, 2150, 2180, 2725, 3820, 4300, 4687, 4775, 5450, 8213, 9374, 9550, 10900, 16426, 18748, 19100, 20819, 23435, 32852, 41065, 41638, 46870, 82130, 83276, 93740, 104095, 117175, 164260, 205325, 208190, 234350, 410650, 416380, 468700, 520475, 821300, 895217, 1040950, 1790434, 2081900, 3580868, 4476085, 8952170, 17904340, 22380425, 44760850, 89521700]

約数ペア:

[(1, 89521700), (2, 44760850), (4, 22380425), (5, 17904340), (10, 8952170), (20, 4476085), (25, 3580868), (43, 2081900), (50, 1790434), (86, 1040950), (100, 895217), (109, 821300), (172, 520475), (191, 468700), (215, 416380), (218, 410650), (382, 234350), (430, 208190), (436, 205325), (545, 164260), (764, 117175), (860, 104095), (955, 93740), (1075, 83276), (1090, 82130), (1910, 46870), (2150, 41638), (2180, 41065), (2725, 32852), (3820, 23435), (4300, 20819), (4687, 19100), (4775, 18748), (5450, 16426), (8213, 10900), (9374, 9550)]