179998020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52631}}^1$

素因数の和:52665

約数の個数: 72

約数和(自身を含む): 574741440

約数和(自身を除く): 394743420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 52631, 105262, 157893, 210524, 263155, 315786, 473679, 526310, 631572, 789465, 947358, 999989, 1052620, 1578930, 1894716, 1999978, 2368395, 2999967, 3157860, 3999956, 4736790, 4999945, 5999934, 8999901, 9473580, 9999890, 11999868, 14999835, 17999802, 19999780, 29999670, 35999604, 44999505, 59999340, 89999010, 179998020]

約数ペア:

[(1, 179998020), (2, 89999010), (3, 59999340), (4, 44999505), (5, 35999604), (6, 29999670), (9, 19999780), (10, 17999802), (12, 14999835), (15, 11999868), (18, 9999890), (19, 9473580), (20, 8999901), (30, 5999934), (36, 4999945), (38, 4736790), (45, 3999956), (57, 3157860), (60, 2999967), (76, 2368395), (90, 1999978), (95, 1894716), (114, 1578930), (171, 1052620), (180, 999989), (190, 947358), (228, 789465), (285, 631572), (342, 526310), (380, 473679), (570, 315786), (684, 263155), (855, 210524), (1140, 157893), (1710, 105262), (3420, 52631)]