661400788796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{381509}}^1$

素因数の和:381627

約数の個数: 72

約数和(自身を含む): 1336545509040

約数和(自身を除く): 675144720244

約数列:

[1, 2, 4, 11, 22, 31, 41, 44, 62, 82, 124, 164, 341, 451, 682, 902, 961, 1271, 1364, 1804, 1922, 2542, 3844, 5084, 10571, 13981, 21142, 27962, 39401, 42284, 55924, 78802, 157604, 381509, 433411, 763018, 866822, 1526036, 1733644, 4196599, 8393198, 11826779, 15641869, 16786396, 23653558, 31283738, 47307116, 62567476, 130094569, 172060559, 260189138, 344121118, 366630149, 484897939, 520378276, 688242236, 733260298, 969795878, 1466520596, 1939591756, 4032931639, 5333877329, 8065863278, 10667754658, 15031836109, 16131726556, 21335509316, 30063672218, 60127344436, 165350197199, 330700394398, 661400788796]

約数ペア:

[(1, 661400788796), (2, 330700394398), (4, 165350197199), (11, 60127344436), (22, 30063672218), (31, 21335509316), (41, 16131726556), (44, 15031836109), (62, 10667754658), (82, 8065863278), (124, 5333877329), (164, 4032931639), (341, 1939591756), (451, 1466520596), (682, 969795878), (902, 733260298), (961, 688242236), (1271, 520378276), (1364, 484897939), (1804, 366630149), (1922, 344121118), (2542, 260189138), (3844, 172060559), (5084, 130094569), (10571, 62567476), (13981, 47307116), (21142, 31283738), (27962, 23653558), (39401, 16786396), (42284, 15641869), (55924, 11826779), (78802, 8393198), (157604, 4196599), (381509, 1733644), (433411, 1526036), (763018, 866822)]