20044544

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 45499440

約数和(自身を除く): 25454896

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 317, 416, 494, 608, 634, 832, 988, 1216, 1268, 1664, 1976, 2432, 2536, 3328, 3952, 4121, 4864, 5072, 6023, 7904, 8242, 10144, 12046, 15808, 16484, 20288, 24092, 31616, 32968, 40576, 48184, 63232, 65936, 78299, 81152, 96368, 131872, 156598, 192736, 263744, 313196, 385472, 527488, 626392, 770944, 1054976, 1252784, 1541888, 2505568, 5011136, 10022272, 20044544]

約数ペア:

[(1, 20044544), (2, 10022272), (4, 5011136), (8, 2505568), (13, 1541888), (16, 1252784), (19, 1054976), (26, 770944), (32, 626392), (38, 527488), (52, 385472), (64, 313196), (76, 263744), (104, 192736), (128, 156598), (152, 131872), (208, 96368), (247, 81152), (256, 78299), (304, 65936), (317, 63232), (416, 48184), (494, 40576), (608, 32968), (634, 31616), (832, 24092), (988, 20288), (1216, 16484), (1268, 15808), (1664, 12046), (1976, 10144), (2432, 8242), (2536, 7904), (3328, 6023), (3952, 5072), (4121, 4864)]