640104704

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{571}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 1332851520

約数和(自身を除く): 692746816

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 151, 232, 256, 302, 464, 571, 604, 928, 1142, 1208, 1856, 2284, 2416, 3712, 4379, 4568, 4832, 7424, 8758, 9136, 9664, 16559, 17516, 18272, 19328, 33118, 35032, 36544, 38656, 66236, 70064, 73088, 86221, 132472, 140128, 146176, 172442, 264944, 280256, 344884, 529888, 560512, 689768, 1059776, 1121024, 1379536, 2119552, 2500409, 2759072, 4239104, 5000818, 5518144, 10001636, 11036288, 20003272, 22072576, 40006544, 80013088, 160026176, 320052352, 640104704]

約数ペア:

[(1, 640104704), (2, 320052352), (4, 160026176), (8, 80013088), (16, 40006544), (29, 22072576), (32, 20003272), (58, 11036288), (64, 10001636), (116, 5518144), (128, 5000818), (151, 4239104), (232, 2759072), (256, 2500409), (302, 2119552), (464, 1379536), (571, 1121024), (604, 1059776), (928, 689768), (1142, 560512), (1208, 529888), (1856, 344884), (2284, 280256), (2416, 264944), (3712, 172442), (4379, 146176), (4568, 140128), (4832, 132472), (7424, 86221), (8758, 73088), (9136, 70064), (9664, 66236), (16559, 38656), (17516, 36544), (18272, 35032), (19328, 33118)]