9901400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1597}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 23778240

約数和(自身を除く): 13876840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 1597, 3100, 3194, 6200, 6388, 7985, 12776, 15970, 31940, 39925, 49507, 63880, 79850, 99014, 159700, 198028, 247535, 319400, 396056, 495070, 990140, 1237675, 1980280, 2475350, 4950700, 9901400]

約数ペア:

[(1, 9901400), (2, 4950700), (4, 2475350), (5, 1980280), (8, 1237675), (10, 990140), (20, 495070), (25, 396056), (31, 319400), (40, 247535), (50, 198028), (62, 159700), (100, 99014), (124, 79850), (155, 63880), (200, 49507), (248, 39925), (310, 31940), (620, 15970), (775, 12776), (1240, 7985), (1550, 6388), (1597, 6200), (3100, 3194)]