1888897900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{1321}}^1$

素因数の和:1595

約数の個数: 72

約数和(自身を含む): 4176885440

約数和(自身を除く): 2287987540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 181, 316, 362, 395, 724, 790, 905, 1321, 1580, 1810, 1975, 2642, 3620, 3950, 4525, 5284, 6605, 7900, 9050, 13210, 14299, 18100, 26420, 28598, 33025, 57196, 66050, 71495, 104359, 132100, 142990, 208718, 239101, 285980, 357475, 417436, 478202, 521795, 714950, 956404, 1043590, 1195505, 1429900, 2087180, 2391010, 2608975, 4782020, 5217950, 5977525, 10435900, 11955050, 18888979, 23910100, 37777958, 75555916, 94444895, 188889790, 377779580, 472224475, 944448950, 1888897900]

約数ペア:

[(1, 1888897900), (2, 944448950), (4, 472224475), (5, 377779580), (10, 188889790), (20, 94444895), (25, 75555916), (50, 37777958), (79, 23910100), (100, 18888979), (158, 11955050), (181, 10435900), (316, 5977525), (362, 5217950), (395, 4782020), (724, 2608975), (790, 2391010), (905, 2087180), (1321, 1429900), (1580, 1195505), (1810, 1043590), (1975, 956404), (2642, 714950), (3620, 521795), (3950, 478202), (4525, 417436), (5284, 357475), (6605, 285980), (7900, 239101), (9050, 208718), (13210, 142990), (14299, 132100), (18100, 104359), (26420, 71495), (28598, 66050), (33025, 57196)]