203209820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:803

約数の個数: 72

約数和(自身を含む): 473379984

約数和(自身を除く): 270170164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 131, 220, 242, 262, 484, 524, 605, 641, 655, 1210, 1282, 1310, 1441, 2420, 2564, 2620, 2882, 3205, 5764, 6410, 7051, 7205, 12820, 14102, 14410, 15851, 28204, 28820, 31702, 35255, 63404, 70510, 77561, 79255, 83971, 141020, 155122, 158510, 167942, 310244, 317020, 335884, 387805, 419855, 775610, 839710, 923681, 1551220, 1679420, 1847362, 3694724, 4618405, 9236810, 10160491, 18473620, 20320982, 40641964, 50802455, 101604910, 203209820]

約数ペア:

[(1, 203209820), (2, 101604910), (4, 50802455), (5, 40641964), (10, 20320982), (11, 18473620), (20, 10160491), (22, 9236810), (44, 4618405), (55, 3694724), (110, 1847362), (121, 1679420), (131, 1551220), (220, 923681), (242, 839710), (262, 775610), (484, 419855), (524, 387805), (605, 335884), (641, 317020), (655, 310244), (1210, 167942), (1282, 158510), (1310, 155122), (1441, 141020), (2420, 83971), (2564, 79255), (2620, 77561), (2882, 70510), (3205, 63404), (5764, 35255), (6410, 31702), (7051, 28820), (7205, 28204), (12820, 15851), (14102, 14410)]