79681040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1429}}^1$

素因数の和:1500

約数の個数: 80

約数和(自身を含む): 201080880

約数和(自身を除く): 121399840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 205, 272, 328, 340, 410, 656, 680, 697, 820, 1360, 1394, 1429, 1640, 2788, 2858, 3280, 3485, 5576, 5716, 6970, 7145, 11152, 11432, 13940, 14290, 22864, 24293, 27880, 28580, 48586, 55760, 57160, 58589, 97172, 114320, 117178, 121465, 194344, 234356, 242930, 292945, 388688, 468712, 485860, 585890, 937424, 971720, 996013, 1171780, 1943440, 1992026, 2343560, 3984052, 4687120, 4980065, 7968104, 9960130, 15936208, 19920260, 39840520, 79681040]

約数ペア:

[(1, 79681040), (2, 39840520), (4, 19920260), (5, 15936208), (8, 9960130), (10, 7968104), (16, 4980065), (17, 4687120), (20, 3984052), (34, 2343560), (40, 1992026), (41, 1943440), (68, 1171780), (80, 996013), (82, 971720), (85, 937424), (136, 585890), (164, 485860), (170, 468712), (205, 388688), (272, 292945), (328, 242930), (340, 234356), (410, 194344), (656, 121465), (680, 117178), (697, 114320), (820, 97172), (1360, 58589), (1394, 57160), (1429, 55760), (1640, 48586), (2788, 28580), (2858, 27880), (3280, 24293), (3485, 22864), (5576, 14290), (5716, 13940), (6970, 11432), (7145, 11152)]