261843520

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:540

約数の個数: 112

約数和(自身を含む): 667146240

約数和(自身を除く): 405302720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 127, 136, 160, 170, 254, 272, 320, 340, 379, 508, 544, 635, 680, 758, 1016, 1088, 1270, 1360, 1516, 1895, 2032, 2159, 2540, 2720, 3032, 3790, 4064, 4318, 5080, 5440, 6064, 6443, 7580, 8128, 8636, 10160, 10795, 12128, 12886, 15160, 17272, 20320, 21590, 24256, 25772, 30320, 32215, 34544, 40640, 43180, 48133, 51544, 60640, 64430, 69088, 86360, 96266, 103088, 121280, 128860, 138176, 172720, 192532, 206176, 240665, 257720, 345440, 385064, 412352, 481330, 515440, 690880, 770128, 818261, 962660, 1030880, 1540256, 1636522, 1925320, 2061760, 3080512, 3273044, 3850640, 4091305, 6546088, 7701280, 8182610, 13092176, 15402560, 16365220, 26184352, 32730440, 52368704, 65460880, 130921760, 261843520]

約数ペア:

[(1, 261843520), (2, 130921760), (4, 65460880), (5, 52368704), (8, 32730440), (10, 26184352), (16, 16365220), (17, 15402560), (20, 13092176), (32, 8182610), (34, 7701280), (40, 6546088), (64, 4091305), (68, 3850640), (80, 3273044), (85, 3080512), (127, 2061760), (136, 1925320), (160, 1636522), (170, 1540256), (254, 1030880), (272, 962660), (320, 818261), (340, 770128), (379, 690880), (508, 515440), (544, 481330), (635, 412352), (680, 385064), (758, 345440), (1016, 257720), (1088, 240665), (1270, 206176), (1360, 192532), (1516, 172720), (1895, 138176), (2032, 128860), (2159, 121280), (2540, 103088), (2720, 96266), (3032, 86360), (3790, 69088), (4064, 64430), (4318, 60640), (5080, 51544), (5440, 48133), (6064, 43180), (6443, 40640), (7580, 34544), (8128, 32215), (8636, 30320), (10160, 25772), (10795, 24256), (12128, 21590), (12886, 20320), (15160, 17272)]