40645760

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1609

約数の個数: 64

約数和(自身を含む): 99603000

約数和(自身を除く): 58957240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 1312, 1549, 1640, 2624, 3098, 3280, 5248, 6196, 6560, 7745, 12392, 13120, 15490, 24784, 26240, 30980, 49568, 61960, 63509, 99136, 123920, 127018, 198272, 247840, 254036, 317545, 495680, 508072, 635090, 991360, 1016144, 1270180, 2032288, 2540360, 4064576, 5080720, 8129152, 10161440, 20322880, 40645760]

約数ペア:

[(1, 40645760), (2, 20322880), (4, 10161440), (5, 8129152), (8, 5080720), (10, 4064576), (16, 2540360), (20, 2032288), (32, 1270180), (40, 1016144), (41, 991360), (64, 635090), (80, 508072), (82, 495680), (128, 317545), (160, 254036), (164, 247840), (205, 198272), (320, 127018), (328, 123920), (410, 99136), (640, 63509), (656, 61960), (820, 49568), (1312, 30980), (1549, 26240), (1640, 24784), (2624, 15490), (3098, 13120), (3280, 12392), (5248, 7745), (6196, 6560)]