31415800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 80776080

約数和(自身を除く): 49360280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 100, 104, 130, 172, 200, 215, 260, 281, 325, 344, 430, 520, 559, 562, 650, 860, 1075, 1118, 1124, 1300, 1405, 1720, 2150, 2236, 2248, 2600, 2795, 2810, 3653, 4300, 4472, 5590, 5620, 7025, 7306, 8600, 11180, 11240, 12083, 13975, 14050, 14612, 18265, 22360, 24166, 27950, 28100, 29224, 36530, 48332, 55900, 56200, 60415, 73060, 91325, 96664, 111800, 120830, 146120, 157079, 182650, 241660, 302075, 314158, 365300, 483320, 604150, 628316, 730600, 785395, 1208300, 1256632, 1570790, 2416600, 3141580, 3926975, 6283160, 7853950, 15707900, 31415800]

約数ペア:

[(1, 31415800), (2, 15707900), (4, 7853950), (5, 6283160), (8, 3926975), (10, 3141580), (13, 2416600), (20, 1570790), (25, 1256632), (26, 1208300), (40, 785395), (43, 730600), (50, 628316), (52, 604150), (65, 483320), (86, 365300), (100, 314158), (104, 302075), (130, 241660), (172, 182650), (200, 157079), (215, 146120), (260, 120830), (281, 111800), (325, 96664), (344, 91325), (430, 73060), (520, 60415), (559, 56200), (562, 55900), (650, 48332), (860, 36530), (1075, 29224), (1118, 28100), (1124, 27950), (1300, 24166), (1405, 22360), (1720, 18265), (2150, 14612), (2236, 14050), (2248, 13975), (2600, 12083), (2795, 11240), (2810, 11180), (3653, 8600), (4300, 7306), (4472, 7025), (5590, 5620)]