28744280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1031}}^1$

素因数の和:1100

約数の個数: 64

約数和(自身を含む): 70217280

約数和(自身を除く): 41473000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 820, 1031, 1394, 1640, 2062, 2788, 3485, 4124, 5155, 5576, 6970, 8248, 10310, 13940, 17527, 20620, 27880, 35054, 41240, 42271, 70108, 84542, 87635, 140216, 169084, 175270, 211355, 338168, 350540, 422710, 701080, 718607, 845420, 1437214, 1690840, 2874428, 3593035, 5748856, 7186070, 14372140, 28744280]

約数ペア:

[(1, 28744280), (2, 14372140), (4, 7186070), (5, 5748856), (8, 3593035), (10, 2874428), (17, 1690840), (20, 1437214), (34, 845420), (40, 718607), (41, 701080), (68, 422710), (82, 350540), (85, 338168), (136, 211355), (164, 175270), (170, 169084), (205, 140216), (328, 87635), (340, 84542), (410, 70108), (680, 42271), (697, 41240), (820, 35054), (1031, 27880), (1394, 20620), (1640, 17527), (2062, 13940), (2788, 10310), (3485, 8248), (4124, 6970), (5155, 5576)]