816578960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13103}}^1$

素因数の和:13176

約数の個数: 80

約数和(自身を含む): 2047368960

約数和(自身を除く): 1230790000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1640, 3116, 3280, 3895, 6232, 7790, 12464, 13103, 15580, 26206, 31160, 52412, 62320, 65515, 104824, 131030, 209648, 248957, 262060, 497914, 524120, 537223, 995828, 1048240, 1074446, 1244785, 1991656, 2148892, 2489570, 2686115, 3983312, 4297784, 4979140, 5372230, 8595568, 9958280, 10207237, 10744460, 19916560, 20414474, 21488920, 40828948, 42977840, 51036185, 81657896, 102072370, 163315792, 204144740, 408289480, 816578960]

約数ペア:

[(1, 816578960), (2, 408289480), (4, 204144740), (5, 163315792), (8, 102072370), (10, 81657896), (16, 51036185), (19, 42977840), (20, 40828948), (38, 21488920), (40, 20414474), (41, 19916560), (76, 10744460), (80, 10207237), (82, 9958280), (95, 8595568), (152, 5372230), (164, 4979140), (190, 4297784), (205, 3983312), (304, 2686115), (328, 2489570), (380, 2148892), (410, 1991656), (656, 1244785), (760, 1074446), (779, 1048240), (820, 995828), (1520, 537223), (1558, 524120), (1640, 497914), (3116, 262060), (3280, 248957), (3895, 209648), (6232, 131030), (7790, 104824), (12464, 65515), (13103, 62320), (15580, 52412), (26206, 31160)]