18335720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 45677520

約数和(自身を除く): 27341800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 953, 962, 1480, 1906, 1924, 2405, 3812, 3848, 4765, 4810, 7624, 9530, 9620, 12389, 19060, 19240, 24778, 35261, 38120, 49556, 61945, 70522, 99112, 123890, 141044, 176305, 247780, 282088, 352610, 458393, 495560, 705220, 916786, 1410440, 1833572, 2291965, 3667144, 4583930, 9167860, 18335720]

約数ペア:

[(1, 18335720), (2, 9167860), (4, 4583930), (5, 3667144), (8, 2291965), (10, 1833572), (13, 1410440), (20, 916786), (26, 705220), (37, 495560), (40, 458393), (52, 352610), (65, 282088), (74, 247780), (104, 176305), (130, 141044), (148, 123890), (185, 99112), (260, 70522), (296, 61945), (370, 49556), (481, 38120), (520, 35261), (740, 24778), (953, 19240), (962, 19060), (1480, 12389), (1906, 9620), (1924, 9530), (2405, 7624), (3812, 4810), (3848, 4765)]