251352920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:577

約数の個数: 128

約数和(自身を含む): 701568000

約数和(自身を除く): 450215080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 199, 260, 280, 347, 364, 398, 455, 520, 694, 728, 796, 910, 995, 1388, 1393, 1592, 1735, 1820, 1990, 2429, 2587, 2776, 2786, 3470, 3640, 3980, 4511, 4858, 5174, 5572, 6940, 6965, 7960, 9022, 9716, 10348, 11144, 12145, 12935, 13880, 13930, 18044, 18109, 19432, 20696, 22555, 24290, 25870, 27860, 31577, 36088, 36218, 45110, 48580, 51740, 55720, 63154, 69053, 72436, 90220, 90545, 97160, 103480, 126308, 138106, 144872, 157885, 180440, 181090, 252616, 276212, 315770, 345265, 362180, 483371, 552424, 631540, 690530, 724360, 897689, 966742, 1263080, 1381060, 1795378, 1933484, 2416855, 2762120, 3590756, 3866968, 4488445, 4833710, 6283823, 7181512, 8976890, 9667420, 12567646, 17953780, 19334840, 25135292, 31419115, 35907560, 50270584, 62838230, 125676460, 251352920]

約数ペア:

[(1, 251352920), (2, 125676460), (4, 62838230), (5, 50270584), (7, 35907560), (8, 31419115), (10, 25135292), (13, 19334840), (14, 17953780), (20, 12567646), (26, 9667420), (28, 8976890), (35, 7181512), (40, 6283823), (52, 4833710), (56, 4488445), (65, 3866968), (70, 3590756), (91, 2762120), (104, 2416855), (130, 1933484), (140, 1795378), (182, 1381060), (199, 1263080), (260, 966742), (280, 897689), (347, 724360), (364, 690530), (398, 631540), (455, 552424), (520, 483371), (694, 362180), (728, 345265), (796, 315770), (910, 276212), (995, 252616), (1388, 181090), (1393, 180440), (1592, 157885), (1735, 144872), (1820, 138106), (1990, 126308), (2429, 103480), (2587, 97160), (2776, 90545), (2786, 90220), (3470, 72436), (3640, 69053), (3980, 63154), (4511, 55720), (4858, 51740), (5174, 48580), (5572, 45110), (6940, 36218), (6965, 36088), (7960, 31577), (9022, 27860), (9716, 25870), (10348, 24290), (11144, 22555), (12145, 20696), (12935, 19432), (13880, 18109), (13930, 18044)]