61387520

素因数分解:

$2^8\times 5^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 148394400

約数和(自身を除く): 87006880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 241, 256, 320, 398, 482, 640, 796, 964, 995, 1205, 1280, 1592, 1928, 1990, 2410, 3184, 3856, 3980, 4820, 6368, 7712, 7960, 9640, 12736, 15424, 15920, 19280, 25472, 30848, 31840, 38560, 47959, 50944, 61696, 63680, 77120, 95918, 127360, 154240, 191836, 239795, 254720, 308480, 383672, 479590, 767344, 959180, 1534688, 1918360, 3069376, 3836720, 6138752, 7673440, 12277504, 15346880, 30693760, 61387520]

約数ペア:

[(1, 61387520), (2, 30693760), (4, 15346880), (5, 12277504), (8, 7673440), (10, 6138752), (16, 3836720), (20, 3069376), (32, 1918360), (40, 1534688), (64, 959180), (80, 767344), (128, 479590), (160, 383672), (199, 308480), (241, 254720), (256, 239795), (320, 191836), (398, 154240), (482, 127360), (640, 95918), (796, 77120), (964, 63680), (995, 61696), (1205, 50944), (1280, 47959), (1592, 38560), (1928, 31840), (1990, 30848), (2410, 25472), (3184, 19280), (3856, 15920), (3980, 15424), (4820, 12736), (6368, 9640), (7712, 7960)]