128542860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:608

約数の個数: 144

約数和(自身を含む): 414348480

約数和(自身を除く): 285805620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 61, 69, 90, 92, 115, 122, 138, 180, 183, 207, 230, 244, 276, 305, 345, 366, 414, 460, 509, 549, 610, 690, 732, 828, 915, 1018, 1035, 1098, 1220, 1380, 1403, 1527, 1830, 2036, 2070, 2196, 2545, 2745, 2806, 3054, 3660, 4140, 4209, 4581, 5090, 5490, 5612, 6108, 7015, 7635, 8418, 9162, 10180, 10980, 11707, 12627, 14030, 15270, 16836, 18324, 21045, 22905, 23414, 25254, 28060, 30540, 31049, 35121, 42090, 45810, 46828, 50508, 58535, 62098, 63135, 70242, 84180, 91620, 93147, 105363, 117070, 124196, 126270, 140484, 155245, 175605, 186294, 210726, 234140, 252540, 279441, 310490, 351210, 372588, 421452, 465735, 526815, 558882, 620980, 702420, 714127, 931470, 1053630, 1117764, 1397205, 1428254, 1862940, 2107260, 2142381, 2794410, 2856508, 3570635, 4284762, 5588820, 6427143, 7141270, 8569524, 10711905, 12854286, 14282540, 21423810, 25708572, 32135715, 42847620, 64271430, 128542860]

約数ペア:

[(1, 128542860), (2, 64271430), (3, 42847620), (4, 32135715), (5, 25708572), (6, 21423810), (9, 14282540), (10, 12854286), (12, 10711905), (15, 8569524), (18, 7141270), (20, 6427143), (23, 5588820), (30, 4284762), (36, 3570635), (45, 2856508), (46, 2794410), (60, 2142381), (61, 2107260), (69, 1862940), (90, 1428254), (92, 1397205), (115, 1117764), (122, 1053630), (138, 931470), (180, 714127), (183, 702420), (207, 620980), (230, 558882), (244, 526815), (276, 465735), (305, 421452), (345, 372588), (366, 351210), (414, 310490), (460, 279441), (509, 252540), (549, 234140), (610, 210726), (690, 186294), (732, 175605), (828, 155245), (915, 140484), (1018, 126270), (1035, 124196), (1098, 117070), (1220, 105363), (1380, 93147), (1403, 91620), (1527, 84180), (1830, 70242), (2036, 63135), (2070, 62098), (2196, 58535), (2545, 50508), (2745, 46828), (2806, 45810), (3054, 42090), (3660, 35121), (4140, 31049), (4209, 30540), (4581, 28060), (5090, 25254), (5490, 23414), (5612, 22905), (6108, 21045), (7015, 18324), (7635, 16836), (8418, 15270), (9162, 14030), (10180, 12627), (10980, 11707)]