19944900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 144

約数和(自身を含む): 65620800

約数和(自身を除く): 45675900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 83, 89, 90, 100, 108, 135, 150, 166, 178, 180, 225, 249, 267, 270, 300, 332, 356, 415, 445, 450, 498, 534, 540, 675, 747, 801, 830, 890, 900, 996, 1068, 1245, 1335, 1350, 1494, 1602, 1660, 1780, 2075, 2225, 2241, 2403, 2490, 2670, 2700, 2988, 3204, 3735, 4005, 4150, 4450, 4482, 4806, 4980, 5340, 6225, 6675, 7387, 7470, 8010, 8300, 8900, 8964, 9612, 11205, 12015, 12450, 13350, 14774, 14940, 16020, 18675, 20025, 22161, 22410, 24030, 24900, 26700, 29548, 36935, 37350, 40050, 44322, 44820, 48060, 56025, 60075, 66483, 73870, 74700, 80100, 88644, 110805, 112050, 120150, 132966, 147740, 184675, 199449, 221610, 224100, 240300, 265932, 332415, 369350, 398898, 443220, 554025, 664830, 738700, 797796, 997245, 1108050, 1329660, 1662075, 1994490, 2216100, 3324150, 3988980, 4986225, 6648300, 9972450, 19944900]

約数ペア:

[(1, 19944900), (2, 9972450), (3, 6648300), (4, 4986225), (5, 3988980), (6, 3324150), (9, 2216100), (10, 1994490), (12, 1662075), (15, 1329660), (18, 1108050), (20, 997245), (25, 797796), (27, 738700), (30, 664830), (36, 554025), (45, 443220), (50, 398898), (54, 369350), (60, 332415), (75, 265932), (83, 240300), (89, 224100), (90, 221610), (100, 199449), (108, 184675), (135, 147740), (150, 132966), (166, 120150), (178, 112050), (180, 110805), (225, 88644), (249, 80100), (267, 74700), (270, 73870), (300, 66483), (332, 60075), (356, 56025), (415, 48060), (445, 44820), (450, 44322), (498, 40050), (534, 37350), (540, 36935), (675, 29548), (747, 26700), (801, 24900), (830, 24030), (890, 22410), (900, 22161), (996, 20025), (1068, 18675), (1245, 16020), (1335, 14940), (1350, 14774), (1494, 13350), (1602, 12450), (1660, 12015), (1780, 11205), (2075, 9612), (2225, 8964), (2241, 8900), (2403, 8300), (2490, 8010), (2670, 7470), (2700, 7387), (2988, 6675), (3204, 6225), (3735, 5340), (4005, 4980), (4150, 4806), (4450, 4482)]