399920864

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:788

約数の個数: 96

約数和(自身を含む): 938218176

約数和(自身を除く): 538297312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 73, 74, 112, 146, 148, 224, 259, 292, 296, 511, 518, 584, 592, 661, 1022, 1036, 1168, 1184, 1322, 2044, 2072, 2336, 2644, 2701, 4088, 4144, 4627, 5288, 5402, 8176, 8288, 9254, 10576, 10804, 16352, 18508, 18907, 21152, 21608, 24457, 37016, 37814, 43216, 48253, 48914, 74032, 75628, 86432, 96506, 97828, 148064, 151256, 171199, 193012, 195656, 302512, 337771, 342398, 386024, 391312, 605024, 675542, 684796, 772048, 782624, 1351084, 1369592, 1544096, 1785361, 2702168, 2739184, 3570722, 5404336, 5478368, 7141444, 10808672, 12497527, 14282888, 24995054, 28565776, 49990108, 57131552, 99980216, 199960432, 399920864]

約数ペア:

[(1, 399920864), (2, 199960432), (4, 99980216), (7, 57131552), (8, 49990108), (14, 28565776), (16, 24995054), (28, 14282888), (32, 12497527), (37, 10808672), (56, 7141444), (73, 5478368), (74, 5404336), (112, 3570722), (146, 2739184), (148, 2702168), (224, 1785361), (259, 1544096), (292, 1369592), (296, 1351084), (511, 782624), (518, 772048), (584, 684796), (592, 675542), (661, 605024), (1022, 391312), (1036, 386024), (1168, 342398), (1184, 337771), (1322, 302512), (2044, 195656), (2072, 193012), (2336, 171199), (2644, 151256), (2701, 148064), (4088, 97828), (4144, 96506), (4627, 86432), (5288, 75628), (5402, 74032), (8176, 48914), (8288, 48253), (9254, 43216), (10576, 37814), (10804, 37016), (16352, 24457), (18508, 21608), (18907, 21152)]