161398020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1531}}^1$

素因数の和:1801

約数の個数: 96

約数和(自身を含む): 518870016

約数和(自身を除く): 357471996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 251, 420, 502, 753, 1004, 1255, 1506, 1531, 1757, 2510, 3012, 3062, 3514, 3765, 4593, 5020, 5271, 6124, 7028, 7530, 7655, 8785, 9186, 10542, 10717, 15060, 15310, 17570, 18372, 21084, 21434, 22965, 26355, 30620, 32151, 35140, 42868, 45930, 52710, 53585, 64302, 91860, 105420, 107170, 128604, 160755, 214340, 321510, 384281, 643020, 768562, 1152843, 1537124, 1921405, 2305686, 2689967, 3842810, 4611372, 5379934, 5764215, 7685620, 8069901, 10759868, 11528430, 13449835, 16139802, 23056860, 26899670, 32279604, 40349505, 53799340, 80699010, 161398020]

約数ペア:

[(1, 161398020), (2, 80699010), (3, 53799340), (4, 40349505), (5, 32279604), (6, 26899670), (7, 23056860), (10, 16139802), (12, 13449835), (14, 11528430), (15, 10759868), (20, 8069901), (21, 7685620), (28, 5764215), (30, 5379934), (35, 4611372), (42, 3842810), (60, 2689967), (70, 2305686), (84, 1921405), (105, 1537124), (140, 1152843), (210, 768562), (251, 643020), (420, 384281), (502, 321510), (753, 214340), (1004, 160755), (1255, 128604), (1506, 107170), (1531, 105420), (1757, 91860), (2510, 64302), (3012, 53585), (3062, 52710), (3514, 45930), (3765, 42868), (4593, 35140), (5020, 32151), (5271, 30620), (6124, 26355), (7028, 22965), (7530, 21434), (7655, 21084), (8785, 18372), (9186, 17570), (10542, 15310), (10717, 15060)]