7815720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 26542080

約数和(自身を除く): 18726360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 191, 220, 248, 264, 310, 330, 341, 372, 382, 440, 465, 573, 620, 660, 682, 744, 764, 930, 955, 1023, 1146, 1240, 1320, 1364, 1528, 1705, 1860, 1910, 2046, 2101, 2292, 2728, 2865, 3410, 3720, 3820, 4092, 4202, 4584, 5115, 5730, 5921, 6303, 6820, 7640, 8184, 8404, 10230, 10505, 11460, 11842, 12606, 13640, 16808, 17763, 20460, 21010, 22920, 23684, 25212, 29605, 31515, 35526, 40920, 42020, 47368, 50424, 59210, 63030, 65131, 71052, 84040, 88815, 118420, 126060, 130262, 142104, 177630, 195393, 236840, 252120, 260524, 325655, 355260, 390786, 521048, 651310, 710520, 781572, 976965, 1302620, 1563144, 1953930, 2605240, 3907860, 7815720]

約数ペア:

[(1, 7815720), (2, 3907860), (3, 2605240), (4, 1953930), (5, 1563144), (6, 1302620), (8, 976965), (10, 781572), (11, 710520), (12, 651310), (15, 521048), (20, 390786), (22, 355260), (24, 325655), (30, 260524), (31, 252120), (33, 236840), (40, 195393), (44, 177630), (55, 142104), (60, 130262), (62, 126060), (66, 118420), (88, 88815), (93, 84040), (110, 71052), (120, 65131), (124, 63030), (132, 59210), (155, 50424), (165, 47368), (186, 42020), (191, 40920), (220, 35526), (248, 31515), (264, 29605), (310, 25212), (330, 23684), (341, 22920), (372, 21010), (382, 20460), (440, 17763), (465, 16808), (573, 13640), (620, 12606), (660, 11842), (682, 11460), (744, 10505), (764, 10230), (930, 8404), (955, 8184), (1023, 7640), (1146, 6820), (1240, 6303), (1320, 5921), (1364, 5730), (1528, 5115), (1705, 4584), (1860, 4202), (1910, 4092), (2046, 3820), (2101, 3720), (2292, 3410), (2728, 2865)]