2787060520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:587

約数の個数: 128

約数和(自身を含む): 6658329600

約数和(自身を除く): 3871269080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 103, 148, 185, 188, 206, 235, 296, 370, 376, 389, 412, 470, 515, 740, 778, 824, 940, 1030, 1480, 1556, 1739, 1880, 1945, 2060, 3112, 3478, 3811, 3890, 4120, 4841, 6956, 7622, 7780, 8695, 9682, 13912, 14393, 15244, 15560, 17390, 18283, 19055, 19364, 24205, 28786, 30488, 34780, 36566, 38110, 38728, 40067, 48410, 57572, 69560, 71965, 73132, 76220, 80134, 91415, 96820, 115144, 143930, 146264, 152440, 160268, 179117, 182830, 193640, 200335, 287860, 320536, 358234, 365660, 400670, 575720, 676471, 716468, 731320, 801340, 895585, 1352942, 1432936, 1482479, 1602680, 1791170, 1883149, 2705884, 2964958, 3382355, 3582340, 3766298, 5411768, 5929916, 6764710, 7164680, 7412395, 7532596, 9415745, 11859832, 13529420, 14824790, 15065192, 18831490, 27058840, 29649580, 37662980, 59299160, 69676513, 75325960, 139353026, 278706052, 348382565, 557412104, 696765130, 1393530260, 2787060520]

約数ペア:

[(1, 2787060520), (2, 1393530260), (4, 696765130), (5, 557412104), (8, 348382565), (10, 278706052), (20, 139353026), (37, 75325960), (40, 69676513), (47, 59299160), (74, 37662980), (94, 29649580), (103, 27058840), (148, 18831490), (185, 15065192), (188, 14824790), (206, 13529420), (235, 11859832), (296, 9415745), (370, 7532596), (376, 7412395), (389, 7164680), (412, 6764710), (470, 5929916), (515, 5411768), (740, 3766298), (778, 3582340), (824, 3382355), (940, 2964958), (1030, 2705884), (1480, 1883149), (1556, 1791170), (1739, 1602680), (1880, 1482479), (1945, 1432936), (2060, 1352942), (3112, 895585), (3478, 801340), (3811, 731320), (3890, 716468), (4120, 676471), (4841, 575720), (6956, 400670), (7622, 365660), (7780, 358234), (8695, 320536), (9682, 287860), (13912, 200335), (14393, 193640), (15244, 182830), (15560, 179117), (17390, 160268), (18283, 152440), (19055, 146264), (19364, 143930), (24205, 115144), (28786, 96820), (30488, 91415), (34780, 80134), (36566, 76220), (38110, 73132), (38728, 71965), (40067, 69560), (48410, 57572)]