289939440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{172583}}^1$

素因数の和:172606

約数の個数: 80

約数和(自身を含む): 1027219968

約数和(自身を除く): 737280528

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 172583, 345166, 517749, 690332, 862915, 1035498, 1208081, 1380664, 1725830, 2070996, 2416162, 2588745, 2761328, 3451660, 3624243, 4141992, 4832324, 5177490, 6040405, 6903320, 7248486, 8283984, 9664648, 10354980, 12080810, 13806640, 14496972, 18121215, 19329296, 20709960, 24161620, 28993944, 36242430, 41419920, 48323240, 57987888, 72484860, 96646480, 144969720, 289939440]

約数ペア:

[(1, 289939440), (2, 144969720), (3, 96646480), (4, 72484860), (5, 57987888), (6, 48323240), (7, 41419920), (8, 36242430), (10, 28993944), (12, 24161620), (14, 20709960), (15, 19329296), (16, 18121215), (20, 14496972), (21, 13806640), (24, 12080810), (28, 10354980), (30, 9664648), (35, 8283984), (40, 7248486), (42, 6903320), (48, 6040405), (56, 5177490), (60, 4832324), (70, 4141992), (80, 3624243), (84, 3451660), (105, 2761328), (112, 2588745), (120, 2416162), (140, 2070996), (168, 1725830), (210, 1380664), (240, 1208081), (280, 1035498), (336, 862915), (420, 690332), (560, 517749), (840, 345166), (1680, 172583)]