31280920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 81012960

約数和(自身を除く): 49732040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 121, 184, 220, 230, 242, 253, 281, 440, 460, 484, 506, 562, 605, 920, 968, 1012, 1124, 1210, 1265, 1405, 2024, 2248, 2420, 2530, 2783, 2810, 3091, 4840, 5060, 5566, 5620, 6182, 6463, 10120, 11132, 11240, 12364, 12926, 13915, 15455, 22264, 24728, 25852, 27830, 30910, 32315, 34001, 51704, 55660, 61820, 64630, 68002, 71093, 111320, 123640, 129260, 136004, 142186, 170005, 258520, 272008, 284372, 340010, 355465, 568744, 680020, 710930, 782023, 1360040, 1421860, 1564046, 2843720, 3128092, 3910115, 6256184, 7820230, 15640460, 31280920]

約数ペア:

[(1, 31280920), (2, 15640460), (4, 7820230), (5, 6256184), (8, 3910115), (10, 3128092), (11, 2843720), (20, 1564046), (22, 1421860), (23, 1360040), (40, 782023), (44, 710930), (46, 680020), (55, 568744), (88, 355465), (92, 340010), (110, 284372), (115, 272008), (121, 258520), (184, 170005), (220, 142186), (230, 136004), (242, 129260), (253, 123640), (281, 111320), (440, 71093), (460, 68002), (484, 64630), (506, 61820), (562, 55660), (605, 51704), (920, 34001), (968, 32315), (1012, 30910), (1124, 27830), (1210, 25852), (1265, 24728), (1405, 22264), (2024, 15455), (2248, 13915), (2420, 12926), (2530, 12364), (2783, 11240), (2810, 11132), (3091, 10120), (4840, 6463), (5060, 6182), (5566, 5620)]