20783832460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1\times {\mathrm{2399}}^1$

素因数の和:2815

約数の個数: 96

約数和(自身を含む): 46942156800

約数和(自身を除く): 26158324340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 83, 85, 166, 170, 307, 332, 340, 415, 614, 830, 1228, 1411, 1535, 1660, 2399, 2822, 3070, 4798, 5219, 5644, 6140, 7055, 9596, 10438, 11995, 14110, 20876, 23990, 25481, 26095, 28220, 40783, 47980, 50962, 52190, 81566, 101924, 104380, 127405, 163132, 199117, 203915, 254810, 398234, 407830, 433177, 509620, 736493, 796468, 815660, 866354, 995585, 1472986, 1732708, 1991170, 2165885, 2945972, 3384989, 3682465, 3982340, 4331770, 6769978, 7364930, 8663540, 12520381, 13539956, 14729860, 16924945, 25040762, 33849890, 50081524, 61128919, 62601905, 67699780, 122257838, 125203810, 244515676, 250407620, 305644595, 611289190, 1039191623, 1222578380, 2078383246, 4156766492, 5195958115, 10391916230, 20783832460]

約数ペア:

[(1, 20783832460), (2, 10391916230), (4, 5195958115), (5, 4156766492), (10, 2078383246), (17, 1222578380), (20, 1039191623), (34, 611289190), (68, 305644595), (83, 250407620), (85, 244515676), (166, 125203810), (170, 122257838), (307, 67699780), (332, 62601905), (340, 61128919), (415, 50081524), (614, 33849890), (830, 25040762), (1228, 16924945), (1411, 14729860), (1535, 13539956), (1660, 12520381), (2399, 8663540), (2822, 7364930), (3070, 6769978), (4798, 4331770), (5219, 3982340), (5644, 3682465), (6140, 3384989), (7055, 2945972), (9596, 2165885), (10438, 1991170), (11995, 1732708), (14110, 1472986), (20876, 995585), (23990, 866354), (25481, 815660), (26095, 796468), (28220, 736493), (40783, 509620), (47980, 433177), (50962, 407830), (52190, 398234), (81566, 254810), (101924, 203915), (104380, 199117), (127405, 163132)]