4016980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 10009440

約数和(自身を除く): 5992460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 31, 38, 44, 55, 62, 76, 95, 110, 124, 155, 190, 209, 220, 310, 341, 380, 418, 589, 620, 682, 836, 961, 1045, 1178, 1364, 1705, 1922, 2090, 2356, 2945, 3410, 3844, 4180, 4805, 5890, 6479, 6820, 9610, 10571, 11780, 12958, 18259, 19220, 21142, 25916, 32395, 36518, 42284, 52855, 64790, 73036, 91295, 105710, 129580, 182590, 200849, 211420, 365180, 401698, 803396, 1004245, 2008490, 4016980]

約数ペア:

[(1, 4016980), (2, 2008490), (4, 1004245), (5, 803396), (10, 401698), (11, 365180), (19, 211420), (20, 200849), (22, 182590), (31, 129580), (38, 105710), (44, 91295), (55, 73036), (62, 64790), (76, 52855), (95, 42284), (110, 36518), (124, 32395), (155, 25916), (190, 21142), (209, 19220), (220, 18259), (310, 12958), (341, 11780), (380, 10571), (418, 9610), (589, 6820), (620, 6479), (682, 5890), (836, 4805), (961, 4180), (1045, 3844), (1178, 3410), (1364, 2945), (1705, 2356), (1922, 2090)]