78398720

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2663}}^1$

素因数の和:2707

約数の個数: 72

約数和(自身を含む): 196027776

約数和(自身を除く): 117629056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 920, 1280, 1472, 1840, 2663, 2944, 3680, 5326, 5888, 7360, 10652, 13315, 14720, 21304, 26630, 29440, 42608, 53260, 61249, 85216, 106520, 122498, 170432, 213040, 244996, 306245, 340864, 426080, 489992, 612490, 681728, 852160, 979984, 1224980, 1704320, 1959968, 2449960, 3408640, 3919936, 4899920, 7839872, 9799840, 15679744, 19599680, 39199360, 78398720]

約数ペア:

[(1, 78398720), (2, 39199360), (4, 19599680), (5, 15679744), (8, 9799840), (10, 7839872), (16, 4899920), (20, 3919936), (23, 3408640), (32, 2449960), (40, 1959968), (46, 1704320), (64, 1224980), (80, 979984), (92, 852160), (115, 681728), (128, 612490), (160, 489992), (184, 426080), (230, 340864), (256, 306245), (320, 244996), (368, 213040), (460, 170432), (640, 122498), (736, 106520), (920, 85216), (1280, 61249), (1472, 53260), (1840, 42608), (2663, 29440), (2944, 26630), (3680, 21304), (5326, 14720), (5888, 13315), (7360, 10652)]