128008920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2705

約数の個数: 128

約数和(自身を含む): 427069440

約数和(自身を除く): 299060520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 2647, 3224, 3720, 4030, 4836, 5294, 6045, 7941, 8060, 9672, 10588, 12090, 13235, 15882, 16120, 21176, 24180, 26470, 31764, 34411, 39705, 48360, 52940, 63528, 68822, 79410, 82057, 103233, 105880, 137644, 158820, 164114, 172055, 206466, 246171, 275288, 317640, 328228, 344110, 410285, 412932, 492342, 516165, 656456, 688220, 820570, 825864, 984684, 1032330, 1066741, 1230855, 1376440, 1641140, 1969368, 2064660, 2133482, 2461710, 3200223, 3282280, 4129320, 4266964, 4923420, 5333705, 6400446, 8533928, 9846840, 10667410, 12800892, 16001115, 21334820, 25601784, 32002230, 42669640, 64004460, 128008920]

約数ペア:

[(1, 128008920), (2, 64004460), (3, 42669640), (4, 32002230), (5, 25601784), (6, 21334820), (8, 16001115), (10, 12800892), (12, 10667410), (13, 9846840), (15, 8533928), (20, 6400446), (24, 5333705), (26, 4923420), (30, 4266964), (31, 4129320), (39, 3282280), (40, 3200223), (52, 2461710), (60, 2133482), (62, 2064660), (65, 1969368), (78, 1641140), (93, 1376440), (104, 1230855), (120, 1066741), (124, 1032330), (130, 984684), (155, 825864), (156, 820570), (186, 688220), (195, 656456), (248, 516165), (260, 492342), (310, 412932), (312, 410285), (372, 344110), (390, 328228), (403, 317640), (465, 275288), (520, 246171), (620, 206466), (744, 172055), (780, 164114), (806, 158820), (930, 137644), (1209, 105880), (1240, 103233), (1560, 82057), (1612, 79410), (1860, 68822), (2015, 63528), (2418, 52940), (2647, 48360), (3224, 39705), (3720, 34411), (4030, 31764), (4836, 26470), (5294, 24180), (6045, 21176), (7941, 16120), (8060, 15882), (9672, 13235), (10588, 12090)]