80838700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 183738240

約数和(自身を除く): 102899540

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 89, 100, 124, 155, 178, 293, 310, 356, 445, 586, 620, 775, 890, 1172, 1465, 1550, 1780, 2225, 2759, 2930, 3100, 4450, 5518, 5860, 7325, 8900, 9083, 11036, 13795, 14650, 18166, 26077, 27590, 29300, 36332, 45415, 52154, 55180, 68975, 90830, 104308, 130385, 137950, 181660, 227075, 260770, 275900, 454150, 521540, 651925, 808387, 908300, 1303850, 1616774, 2607700, 3233548, 4041935, 8083870, 16167740, 20209675, 40419350, 80838700]

約数ペア:

[(1, 80838700), (2, 40419350), (4, 20209675), (5, 16167740), (10, 8083870), (20, 4041935), (25, 3233548), (31, 2607700), (50, 1616774), (62, 1303850), (89, 908300), (100, 808387), (124, 651925), (155, 521540), (178, 454150), (293, 275900), (310, 260770), (356, 227075), (445, 181660), (586, 137950), (620, 130385), (775, 104308), (890, 90830), (1172, 68975), (1465, 55180), (1550, 52154), (1780, 45415), (2225, 36332), (2759, 29300), (2930, 27590), (3100, 26077), (4450, 18166), (5518, 14650), (5860, 13795), (7325, 11036), (8900, 9083)]