55121260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 118389600

約数和(自身を除く): 63268340

約数列:

[1, 2, 4, 5, 10, 20, 89, 173, 178, 179, 346, 356, 358, 445, 692, 716, 865, 890, 895, 1730, 1780, 1790, 3460, 3580, 15397, 15931, 30794, 30967, 31862, 61588, 61934, 63724, 76985, 79655, 123868, 153970, 154835, 159310, 307940, 309670, 318620, 619340, 2756063, 5512126, 11024252, 13780315, 27560630, 55121260]

約数ペア:

[(1, 55121260), (2, 27560630), (4, 13780315), (5, 11024252), (10, 5512126), (20, 2756063), (89, 619340), (173, 318620), (178, 309670), (179, 307940), (346, 159310), (356, 154835), (358, 153970), (445, 123868), (692, 79655), (716, 76985), (865, 63724), (890, 61934), (895, 61588), (1730, 31862), (1780, 30967), (1790, 30794), (3460, 15931), (3580, 15397)]