15707900

素因数分解:

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

素因数の和:351

約数の個数: 72

約数和(自身を含む): 37695504

約数和(自身を除く): 21987604

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 281, 325, 430, 559, 562, 650, 860, 1075, 1118, 1124, 1300, 1405, 2150, 2236, 2795, 2810, 3653, 4300, 5590, 5620, 7025, 7306, 11180, 12083, 13975, 14050, 14612, 18265, 24166, 27950, 28100, 36530, 48332, 55900, 60415, 73060, 91325, 120830, 157079, 182650, 241660, 302075, 314158, 365300, 604150, 628316, 785395, 1208300, 1570790, 3141580, 3926975, 7853950, 15707900]

約数ペア:

[(1, 15707900), (2, 7853950), (4, 3926975), (5, 3141580), (10, 1570790), (13, 1208300), (20, 785395), (25, 628316), (26, 604150), (43, 365300), (50, 314158), (52, 302075), (65, 241660), (86, 182650), (100, 157079), (130, 120830), (172, 91325), (215, 73060), (260, 60415), (281, 55900), (325, 48332), (430, 36530), (559, 28100), (562, 27950), (650, 24166), (860, 18265), (1075, 14612), (1118, 14050), (1124, 13975), (1300, 12083), (1405, 11180), (2150, 7306), (2236, 7025), (2795, 5620), (2810, 5590), (3653, 4300)]