261760958020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{557}}^1\times {\mathrm{2861}}^1$

素因数の和:3661

約数の個数: 96

約数和(自身を含む): 566639732736

約数和(自身を除く): 304878774716

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 191, 215, 382, 430, 557, 764, 860, 955, 1114, 1910, 2228, 2785, 2861, 3820, 5570, 5722, 8213, 11140, 11444, 14305, 16426, 23951, 28610, 32852, 41065, 47902, 57220, 82130, 95804, 106387, 119755, 123023, 164260, 212774, 239510, 246046, 425548, 479020, 492092, 531935, 546451, 615115, 1063870, 1092902, 1230230, 1593577, 2127740, 2185804, 2460460, 2732255, 3187154, 4574641, 5464510, 6374308, 7967885, 9149282, 10929020, 15935770, 18298564, 22873205, 23497393, 31871540, 45746410, 46994786, 68523811, 91492820, 93989572, 117486965, 137047622, 234973930, 274095244, 304373207, 342619055, 469947860, 608746414, 685238110, 1217492828, 1370476220, 1521866035, 3043732070, 6087464140, 13088047901, 26176095802, 52352191604, 65440239505, 130880479010, 261760958020]

約数ペア:

[(1, 261760958020), (2, 130880479010), (4, 65440239505), (5, 52352191604), (10, 26176095802), (20, 13088047901), (43, 6087464140), (86, 3043732070), (172, 1521866035), (191, 1370476220), (215, 1217492828), (382, 685238110), (430, 608746414), (557, 469947860), (764, 342619055), (860, 304373207), (955, 274095244), (1114, 234973930), (1910, 137047622), (2228, 117486965), (2785, 93989572), (2861, 91492820), (3820, 68523811), (5570, 46994786), (5722, 45746410), (8213, 31871540), (11140, 23497393), (11444, 22873205), (14305, 18298564), (16426, 15935770), (23951, 10929020), (28610, 9149282), (32852, 7967885), (41065, 6374308), (47902, 5464510), (57220, 4574641), (82130, 3187154), (95804, 2732255), (106387, 2460460), (119755, 2185804), (123023, 2127740), (164260, 1593577), (212774, 1230230), (239510, 1092902), (246046, 1063870), (425548, 615115), (479020, 546451), (492092, 531935)]