31181440

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{587}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 75569760

約数和(自身を除く): 44388320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 415, 587, 640, 664, 830, 1174, 1328, 1660, 2348, 2656, 2935, 3320, 4696, 5312, 5870, 6640, 9392, 10624, 11740, 13280, 18784, 23480, 26560, 37568, 46960, 48721, 53120, 75136, 93920, 97442, 187840, 194884, 243605, 375680, 389768, 487210, 779536, 974420, 1559072, 1948840, 3118144, 3897680, 6236288, 7795360, 15590720, 31181440]

約数ペア:

[(1, 31181440), (2, 15590720), (4, 7795360), (5, 6236288), (8, 3897680), (10, 3118144), (16, 1948840), (20, 1559072), (32, 974420), (40, 779536), (64, 487210), (80, 389768), (83, 375680), (128, 243605), (160, 194884), (166, 187840), (320, 97442), (332, 93920), (415, 75136), (587, 53120), (640, 48721), (664, 46960), (830, 37568), (1174, 26560), (1328, 23480), (1660, 18784), (2348, 13280), (2656, 11740), (2935, 10624), (3320, 9392), (4696, 6640), (5312, 5870)]