81175360

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:229

約数の個数: 168

約数和(自身を含む): 233501184

約数和(自身を除く): 152325824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 140, 155, 160, 167, 196, 217, 224, 245, 248, 280, 310, 320, 334, 392, 434, 448, 490, 496, 560, 620, 668, 784, 835, 868, 980, 992, 1085, 1120, 1169, 1240, 1336, 1519, 1568, 1670, 1736, 1960, 1984, 2170, 2240, 2338, 2480, 2672, 3038, 3136, 3340, 3472, 3920, 4340, 4676, 4960, 5177, 5344, 5845, 6076, 6680, 6944, 7595, 7840, 8183, 8680, 9352, 9920, 10354, 10688, 11690, 12152, 13360, 13888, 15190, 15680, 16366, 17360, 18704, 20708, 23380, 24304, 25885, 26720, 30380, 32732, 34720, 36239, 37408, 40915, 41416, 46760, 48608, 51770, 53440, 60760, 65464, 69440, 72478, 74816, 81830, 82832, 93520, 97216, 103540, 121520, 130928, 144956, 163660, 165664, 181195, 187040, 207080, 243040, 253673, 261856, 289912, 327320, 331328, 362390, 374080, 414160, 486080, 507346, 523712, 579824, 654640, 724780, 828320, 1014692, 1159648, 1268365, 1309280, 1449560, 1656640, 2029384, 2319296, 2536730, 2618560, 2899120, 4058768, 5073460, 5798240, 8117536, 10146920, 11596480, 16235072, 20293840, 40587680, 81175360]

約数ペア:

[(1, 81175360), (2, 40587680), (4, 20293840), (5, 16235072), (7, 11596480), (8, 10146920), (10, 8117536), (14, 5798240), (16, 5073460), (20, 4058768), (28, 2899120), (31, 2618560), (32, 2536730), (35, 2319296), (40, 2029384), (49, 1656640), (56, 1449560), (62, 1309280), (64, 1268365), (70, 1159648), (80, 1014692), (98, 828320), (112, 724780), (124, 654640), (140, 579824), (155, 523712), (160, 507346), (167, 486080), (196, 414160), (217, 374080), (224, 362390), (245, 331328), (248, 327320), (280, 289912), (310, 261856), (320, 253673), (334, 243040), (392, 207080), (434, 187040), (448, 181195), (490, 165664), (496, 163660), (560, 144956), (620, 130928), (668, 121520), (784, 103540), (835, 97216), (868, 93520), (980, 82832), (992, 81830), (1085, 74816), (1120, 72478), (1169, 69440), (1240, 65464), (1336, 60760), (1519, 53440), (1568, 51770), (1670, 48608), (1736, 46760), (1960, 41416), (1984, 40915), (2170, 37408), (2240, 36239), (2338, 34720), (2480, 32732), (2672, 30380), (3038, 26720), (3136, 25885), (3340, 24304), (3472, 23380), (3920, 20708), (4340, 18704), (4676, 17360), (4960, 16366), (5177, 15680), (5344, 15190), (5845, 13888), (6076, 13360), (6680, 12152), (6944, 11690), (7595, 10688), (7840, 10354), (8183, 9920), (8680, 9352)]