50940040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 119070000

約数和(自身を除く): 68129960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 349, 356, 410, 445, 698, 712, 820, 890, 1396, 1640, 1745, 1780, 2792, 3490, 3560, 3649, 6980, 7298, 13960, 14309, 14596, 18245, 28618, 29192, 31061, 36490, 57236, 62122, 71545, 72980, 114472, 124244, 143090, 145960, 155305, 248488, 286180, 310610, 572360, 621220, 1242440, 1273501, 2547002, 5094004, 6367505, 10188008, 12735010, 25470020, 50940040]

約数ペア:

[(1, 50940040), (2, 25470020), (4, 12735010), (5, 10188008), (8, 6367505), (10, 5094004), (20, 2547002), (40, 1273501), (41, 1242440), (82, 621220), (89, 572360), (164, 310610), (178, 286180), (205, 248488), (328, 155305), (349, 145960), (356, 143090), (410, 124244), (445, 114472), (698, 72980), (712, 71545), (820, 62122), (890, 57236), (1396, 36490), (1640, 31061), (1745, 29192), (1780, 28618), (2792, 18245), (3490, 14596), (3560, 14309), (3649, 13960), (6980, 7298)]