811888220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 2043939744

約数和(自身を除く): 1232051524

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 131, 143, 197, 220, 242, 260, 262, 286, 394, 484, 524, 572, 605, 655, 715, 788, 985, 1210, 1310, 1430, 1441, 1573, 1703, 1970, 2167, 2420, 2561, 2620, 2860, 2882, 3146, 3406, 3940, 4334, 5122, 5764, 6292, 6812, 7205, 7865, 8515, 8668, 10244, 10835, 12805, 14410, 15730, 15851, 17030, 18733, 21670, 23837, 25610, 25807, 28171, 28820, 31460, 31702, 34060, 37466, 43340, 47674, 51220, 51614, 56342, 63404, 74932, 79255, 93665, 95348, 103228, 112684, 119185, 129035, 140855, 158510, 187330, 206063, 238370, 258070, 281710, 283877, 309881, 317020, 335491, 374660, 412126, 476740, 516140, 563420, 567754, 619762, 670982, 824252, 1030315, 1135508, 1239524, 1341964, 1419385, 1549405, 1677455, 2060630, 2838770, 3098810, 3122647, 3354910, 3690401, 4121260, 5677540, 6197620, 6245294, 6709820, 7380802, 12490588, 14761604, 15613235, 18452005, 31226470, 36904010, 40594411, 62452940, 73808020, 81188822, 162377644, 202972055, 405944110, 811888220]

約数ペア:

[(1, 811888220), (2, 405944110), (4, 202972055), (5, 162377644), (10, 81188822), (11, 73808020), (13, 62452940), (20, 40594411), (22, 36904010), (26, 31226470), (44, 18452005), (52, 15613235), (55, 14761604), (65, 12490588), (110, 7380802), (121, 6709820), (130, 6245294), (131, 6197620), (143, 5677540), (197, 4121260), (220, 3690401), (242, 3354910), (260, 3122647), (262, 3098810), (286, 2838770), (394, 2060630), (484, 1677455), (524, 1549405), (572, 1419385), (605, 1341964), (655, 1239524), (715, 1135508), (788, 1030315), (985, 824252), (1210, 670982), (1310, 619762), (1430, 567754), (1441, 563420), (1573, 516140), (1703, 476740), (1970, 412126), (2167, 374660), (2420, 335491), (2561, 317020), (2620, 309881), (2860, 283877), (2882, 281710), (3146, 258070), (3406, 238370), (3940, 206063), (4334, 187330), (5122, 158510), (5764, 140855), (6292, 129035), (6812, 119185), (7205, 112684), (7865, 103228), (8515, 95348), (8668, 93665), (10244, 79255), (10835, 74932), (12805, 63404), (14410, 56342), (15730, 51614), (15851, 51220), (17030, 47674), (18733, 43340), (21670, 37466), (23837, 34060), (25610, 31702), (25807, 31460), (28171, 28820)]