399563008

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 927158400

約数和(自身を除く): 527595392

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 71, 76, 89, 104, 128, 142, 152, 178, 208, 247, 256, 284, 304, 356, 416, 494, 568, 608, 712, 832, 923, 988, 1136, 1157, 1216, 1349, 1424, 1664, 1691, 1846, 1976, 2272, 2314, 2432, 2698, 2848, 3328, 3382, 3692, 3952, 4544, 4628, 4864, 5396, 5696, 6319, 6764, 7384, 7904, 9088, 9256, 10792, 11392, 12638, 13528, 14768, 15808, 17537, 18176, 18512, 21584, 21983, 22784, 25276, 27056, 29536, 31616, 35074, 37024, 43168, 43966, 50552, 54112, 59072, 63232, 70148, 74048, 82147, 86336, 87932, 101104, 108224, 118144, 120061, 140296, 148096, 164294, 172672, 175864, 202208, 216448, 236288, 240122, 280592, 296192, 328588, 345344, 351728, 404416, 432896, 480244, 561184, 657176, 703456, 808832, 960488, 1122368, 1314352, 1406912, 1560793, 1617664, 1920976, 2244736, 2628704, 2813824, 3121586, 3841952, 4489472, 5257408, 5627648, 6243172, 7683904, 10514816, 12486344, 15367808, 21029632, 24972688, 30735616, 49945376, 99890752, 199781504, 399563008]

約数ペア:

[(1, 399563008), (2, 199781504), (4, 99890752), (8, 49945376), (13, 30735616), (16, 24972688), (19, 21029632), (26, 15367808), (32, 12486344), (38, 10514816), (52, 7683904), (64, 6243172), (71, 5627648), (76, 5257408), (89, 4489472), (104, 3841952), (128, 3121586), (142, 2813824), (152, 2628704), (178, 2244736), (208, 1920976), (247, 1617664), (256, 1560793), (284, 1406912), (304, 1314352), (356, 1122368), (416, 960488), (494, 808832), (568, 703456), (608, 657176), (712, 561184), (832, 480244), (923, 432896), (988, 404416), (1136, 351728), (1157, 345344), (1216, 328588), (1349, 296192), (1424, 280592), (1664, 240122), (1691, 236288), (1846, 216448), (1976, 202208), (2272, 175864), (2314, 172672), (2432, 164294), (2698, 148096), (2848, 140296), (3328, 120061), (3382, 118144), (3692, 108224), (3952, 101104), (4544, 87932), (4628, 86336), (4864, 82147), (5396, 74048), (5696, 70148), (6319, 63232), (6764, 59072), (7384, 54112), (7904, 50552), (9088, 43966), (9256, 43168), (10792, 37024), (11392, 35074), (12638, 31616), (13528, 29536), (14768, 27056), (15808, 25276), (17537, 22784), (18176, 21983), (18512, 21584)]