161947720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{383}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 411816960

約数和(自身を除く): 249869240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 383, 440, 620, 682, 766, 961, 1240, 1364, 1532, 1705, 1915, 1922, 2728, 3064, 3410, 3830, 3844, 4213, 4805, 6820, 7660, 7688, 8426, 9610, 10571, 11873, 13640, 15320, 16852, 19220, 21065, 21142, 23746, 33704, 38440, 42130, 42284, 47492, 52855, 59365, 84260, 84568, 94984, 105710, 118730, 130603, 168520, 211420, 237460, 261206, 368063, 422840, 474920, 522412, 653015, 736126, 1044824, 1306030, 1472252, 1840315, 2612060, 2944504, 3680630, 4048693, 5224120, 7361260, 8097386, 14722520, 16194772, 20243465, 32389544, 40486930, 80973860, 161947720]

約数ペア:

[(1, 161947720), (2, 80973860), (4, 40486930), (5, 32389544), (8, 20243465), (10, 16194772), (11, 14722520), (20, 8097386), (22, 7361260), (31, 5224120), (40, 4048693), (44, 3680630), (55, 2944504), (62, 2612060), (88, 1840315), (110, 1472252), (124, 1306030), (155, 1044824), (220, 736126), (248, 653015), (310, 522412), (341, 474920), (383, 422840), (440, 368063), (620, 261206), (682, 237460), (766, 211420), (961, 168520), (1240, 130603), (1364, 118730), (1532, 105710), (1705, 94984), (1915, 84568), (1922, 84260), (2728, 59365), (3064, 52855), (3410, 47492), (3830, 42284), (3844, 42130), (4213, 38440), (4805, 33704), (6820, 23746), (7660, 21142), (7688, 21065), (8426, 19220), (9610, 16852), (10571, 15320), (11873, 13640)]