20545250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 43490304

約数和(自身を除く): 22945054

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 125, 155, 241, 250, 275, 310, 341, 482, 550, 682, 775, 1205, 1375, 1550, 1705, 2410, 2651, 2750, 3410, 3875, 5302, 6025, 7471, 7750, 8525, 12050, 13255, 14942, 17050, 26510, 30125, 37355, 42625, 60250, 66275, 74710, 82181, 85250, 132550, 164362, 186775, 331375, 373550, 410905, 662750, 821810, 933875, 1867750, 2054525, 4109050, 10272625, 20545250]

約数ペア:

[(1, 20545250), (2, 10272625), (5, 4109050), (10, 2054525), (11, 1867750), (22, 933875), (25, 821810), (31, 662750), (50, 410905), (55, 373550), (62, 331375), (110, 186775), (125, 164362), (155, 132550), (241, 85250), (250, 82181), (275, 74710), (310, 66275), (341, 60250), (482, 42625), (550, 37355), (682, 30125), (775, 26510), (1205, 17050), (1375, 14942), (1550, 13255), (1705, 12050), (2410, 8525), (2651, 7750), (2750, 7471), (3410, 6025), (3875, 5302)]