215534860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{6373}}^1$

素因数の和:6490

約数の個数: 48

約数和(自身を含む): 481874400

約数和(自身を除く): 266339540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 6373, 6764, 8455, 12746, 16910, 25492, 31865, 33820, 63730, 121087, 127460, 242174, 484348, 567197, 605435, 1134394, 1210870, 2268788, 2421740, 2835985, 5671970, 10776743, 11343940, 21553486, 43106972, 53883715, 107767430, 215534860]

約数ペア:

[(1, 215534860), (2, 107767430), (4, 53883715), (5, 43106972), (10, 21553486), (19, 11343940), (20, 10776743), (38, 5671970), (76, 2835985), (89, 2421740), (95, 2268788), (178, 1210870), (190, 1134394), (356, 605435), (380, 567197), (445, 484348), (890, 242174), (1691, 127460), (1780, 121087), (3382, 63730), (6373, 33820), (6764, 31865), (8455, 25492), (12746, 16910)]