90008120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 210651840

約数和(自身を除く): 120643720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 773, 820, 1420, 1546, 1640, 2840, 2911, 3092, 3865, 5822, 6184, 7730, 11644, 14555, 15460, 23288, 29110, 30920, 31693, 54883, 58220, 63386, 109766, 116440, 126772, 158465, 219532, 253544, 274415, 316930, 439064, 548830, 633860, 1097660, 1267720, 2195320, 2250203, 4500406, 9000812, 11251015, 18001624, 22502030, 45004060, 90008120]

約数ペア:

[(1, 90008120), (2, 45004060), (4, 22502030), (5, 18001624), (8, 11251015), (10, 9000812), (20, 4500406), (40, 2250203), (41, 2195320), (71, 1267720), (82, 1097660), (142, 633860), (164, 548830), (205, 439064), (284, 316930), (328, 274415), (355, 253544), (410, 219532), (568, 158465), (710, 126772), (773, 116440), (820, 109766), (1420, 63386), (1546, 58220), (1640, 54883), (2840, 31693), (2911, 30920), (3092, 29110), (3865, 23288), (5822, 15460), (6184, 14555), (7730, 11644)]