20458130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^2$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 25736494

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 163, 326, 385, 770, 815, 1141, 1630, 1793, 2282, 3586, 5705, 8965, 11410, 12551, 17930, 25102, 26569, 53138, 62755, 125510, 132845, 185983, 265690, 292259, 371966, 584518, 929915, 1461295, 1859830, 2045813, 2922590, 4091626, 10229065, 20458130]

約数ペア:

[(1, 20458130), (2, 10229065), (5, 4091626), (7, 2922590), (10, 2045813), (11, 1859830), (14, 1461295), (22, 929915), (35, 584518), (55, 371966), (70, 292259), (77, 265690), (110, 185983), (154, 132845), (163, 125510), (326, 62755), (385, 53138), (770, 26569), (815, 25102), (1141, 17930), (1630, 12551), (1793, 11410), (2282, 8965), (3586, 5705)]