211237760

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1381}}^1$

素因数の和:1639

約数の個数: 64

約数和(自身を含む): 507470400

約数和(自身を除く): 296232640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 478, 640, 956, 1195, 1381, 1912, 2390, 2762, 3824, 4780, 5524, 6905, 7648, 9560, 11048, 13810, 15296, 19120, 22096, 27620, 30592, 38240, 44192, 55240, 76480, 88384, 110480, 152960, 176768, 220960, 330059, 441920, 660118, 883840, 1320236, 1650295, 2640472, 3300590, 5280944, 6601180, 10561888, 13202360, 21123776, 26404720, 42247552, 52809440, 105618880, 211237760]

約数ペア:

[(1, 211237760), (2, 105618880), (4, 52809440), (5, 42247552), (8, 26404720), (10, 21123776), (16, 13202360), (20, 10561888), (32, 6601180), (40, 5280944), (64, 3300590), (80, 2640472), (128, 1650295), (160, 1320236), (239, 883840), (320, 660118), (478, 441920), (640, 330059), (956, 220960), (1195, 176768), (1381, 152960), (1912, 110480), (2390, 88384), (2762, 76480), (3824, 55240), (4780, 44192), (5524, 38240), (6905, 30592), (7648, 27620), (9560, 22096), (11048, 19120), (13810, 15296)]