31029660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:288

約数の個数: 144

約数和(自身を含む): 101861760

約数和(自身を除く): 70832100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 171, 172, 180, 190, 211, 215, 228, 258, 285, 342, 380, 387, 422, 430, 516, 570, 633, 645, 684, 774, 817, 844, 855, 860, 1055, 1140, 1266, 1290, 1548, 1634, 1710, 1899, 1935, 2110, 2451, 2532, 2580, 3165, 3268, 3420, 3798, 3870, 4009, 4085, 4220, 4902, 6330, 7353, 7596, 7740, 8018, 8170, 9073, 9495, 9804, 12027, 12255, 12660, 14706, 16036, 16340, 18146, 18990, 20045, 24054, 24510, 27219, 29412, 36081, 36292, 36765, 37980, 40090, 45365, 48108, 49020, 54438, 60135, 72162, 73530, 80180, 81657, 90730, 108876, 120270, 136095, 144324, 147060, 163314, 172387, 180405, 181460, 240540, 272190, 326628, 344774, 360810, 408285, 517161, 544380, 689548, 721620, 816570, 861935, 1034322, 1551483, 1633140, 1723870, 2068644, 2585805, 3102966, 3447740, 5171610, 6205932, 7757415, 10343220, 15514830, 31029660]

約数ペア:

[(1, 31029660), (2, 15514830), (3, 10343220), (4, 7757415), (5, 6205932), (6, 5171610), (9, 3447740), (10, 3102966), (12, 2585805), (15, 2068644), (18, 1723870), (19, 1633140), (20, 1551483), (30, 1034322), (36, 861935), (38, 816570), (43, 721620), (45, 689548), (57, 544380), (60, 517161), (76, 408285), (86, 360810), (90, 344774), (95, 326628), (114, 272190), (129, 240540), (171, 181460), (172, 180405), (180, 172387), (190, 163314), (211, 147060), (215, 144324), (228, 136095), (258, 120270), (285, 108876), (342, 90730), (380, 81657), (387, 80180), (422, 73530), (430, 72162), (516, 60135), (570, 54438), (633, 49020), (645, 48108), (684, 45365), (774, 40090), (817, 37980), (844, 36765), (855, 36292), (860, 36081), (1055, 29412), (1140, 27219), (1266, 24510), (1290, 24054), (1548, 20045), (1634, 18990), (1710, 18146), (1899, 16340), (1935, 16036), (2110, 14706), (2451, 12660), (2532, 12255), (2580, 12027), (3165, 9804), (3268, 9495), (3420, 9073), (3798, 8170), (3870, 8018), (4009, 7740), (4085, 7596), (4220, 7353), (4902, 6330)]