157917968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1360

約数の個数: 80

約数和(自身を含む): 358310400

約数和(自身を除く): 200392432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 208, 247, 248, 304, 403, 494, 496, 589, 806, 988, 1178, 1289, 1612, 1976, 2356, 2578, 3224, 3952, 4712, 5156, 6448, 7657, 9424, 10312, 15314, 16757, 20624, 24491, 30628, 33514, 39959, 48982, 61256, 67028, 79918, 97964, 122512, 134056, 159836, 195928, 268112, 318383, 319672, 391856, 519467, 636766, 639344, 759221, 1038934, 1273532, 1518442, 2077868, 2547064, 3036884, 4155736, 5094128, 6073768, 8311472, 9869873, 12147536, 19739746, 39479492, 78958984, 157917968]

約数ペア:

[(1, 157917968), (2, 78958984), (4, 39479492), (8, 19739746), (13, 12147536), (16, 9869873), (19, 8311472), (26, 6073768), (31, 5094128), (38, 4155736), (52, 3036884), (62, 2547064), (76, 2077868), (104, 1518442), (124, 1273532), (152, 1038934), (208, 759221), (247, 639344), (248, 636766), (304, 519467), (403, 391856), (494, 319672), (496, 318383), (589, 268112), (806, 195928), (988, 159836), (1178, 134056), (1289, 122512), (1612, 97964), (1976, 79918), (2356, 67028), (2578, 61256), (3224, 48982), (3952, 39959), (4712, 33514), (5156, 30628), (6448, 24491), (7657, 20624), (9424, 16757), (10312, 15314)]