19700872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 41587200

約数和(自身を除く): 21886328

約数列:

[1, 2, 4, 8, 19, 31, 37, 38, 62, 74, 76, 113, 124, 148, 152, 226, 248, 296, 452, 589, 703, 904, 1147, 1178, 1406, 2147, 2294, 2356, 2812, 3503, 4181, 4294, 4588, 4712, 5624, 7006, 8362, 8588, 9176, 14012, 16724, 17176, 21793, 28024, 33448, 43586, 66557, 79439, 87172, 129611, 133114, 158878, 174344, 259222, 266228, 317756, 518444, 532456, 635512, 1036888, 2462609, 4925218, 9850436, 19700872]

約数ペア:

[(1, 19700872), (2, 9850436), (4, 4925218), (8, 2462609), (19, 1036888), (31, 635512), (37, 532456), (38, 518444), (62, 317756), (74, 266228), (76, 259222), (113, 174344), (124, 158878), (148, 133114), (152, 129611), (226, 87172), (248, 79439), (296, 66557), (452, 43586), (589, 33448), (703, 28024), (904, 21793), (1147, 17176), (1178, 16724), (1406, 14012), (2147, 9176), (2294, 8588), (2356, 8362), (2812, 7006), (3503, 5624), (4181, 4712), (4294, 4588)]