878004720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{19991}}^1$

素因数の和:20071

約数の個数: 120

約数和(自身を含む): 2997120672

約数和(自身を除く): 2119115952

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 720, 732, 915, 976, 1098, 1220, 1464, 1830, 2196, 2440, 2745, 2928, 3660, 4392, 4880, 5490, 7320, 8784, 10980, 14640, 19991, 21960, 39982, 43920, 59973, 79964, 99955, 119946, 159928, 179919, 199910, 239892, 299865, 319856, 359838, 399820, 479784, 599730, 719676, 799640, 899595, 959568, 1199460, 1219451, 1439352, 1599280, 1799190, 2398920, 2438902, 2878704, 3598380, 3658353, 4797840, 4877804, 6097255, 7196760, 7316706, 9755608, 10975059, 12194510, 14393520, 14633412, 18291765, 19511216, 21950118, 24389020, 29266824, 36583530, 43900236, 48778040, 54875295, 58533648, 73167060, 87800472, 97556080, 109750590, 146334120, 175600944, 219501180, 292668240, 439002360, 878004720]

約数ペア:

[(1, 878004720), (2, 439002360), (3, 292668240), (4, 219501180), (5, 175600944), (6, 146334120), (8, 109750590), (9, 97556080), (10, 87800472), (12, 73167060), (15, 58533648), (16, 54875295), (18, 48778040), (20, 43900236), (24, 36583530), (30, 29266824), (36, 24389020), (40, 21950118), (45, 19511216), (48, 18291765), (60, 14633412), (61, 14393520), (72, 12194510), (80, 10975059), (90, 9755608), (120, 7316706), (122, 7196760), (144, 6097255), (180, 4877804), (183, 4797840), (240, 3658353), (244, 3598380), (305, 2878704), (360, 2438902), (366, 2398920), (488, 1799190), (549, 1599280), (610, 1439352), (720, 1219451), (732, 1199460), (915, 959568), (976, 899595), (1098, 799640), (1220, 719676), (1464, 599730), (1830, 479784), (2196, 399820), (2440, 359838), (2745, 319856), (2928, 299865), (3660, 239892), (4392, 199910), (4880, 179919), (5490, 159928), (7320, 119946), (8784, 99955), (10980, 79964), (14640, 59973), (19991, 43920), (21960, 39982)]