19948140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 192

約数和(自身を含む): 68584320

約数和(自身を除く): 48636180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 41, 45, 51, 53, 54, 60, 68, 82, 85, 90, 102, 106, 108, 123, 135, 153, 159, 164, 170, 180, 204, 205, 212, 246, 255, 265, 270, 306, 318, 340, 369, 410, 459, 477, 492, 510, 530, 540, 612, 615, 636, 697, 738, 765, 795, 820, 901, 918, 954, 1020, 1060, 1107, 1230, 1394, 1431, 1476, 1530, 1590, 1802, 1836, 1845, 1908, 2091, 2173, 2214, 2295, 2385, 2460, 2703, 2788, 2862, 3060, 3180, 3485, 3604, 3690, 4182, 4346, 4428, 4505, 4590, 4770, 5406, 5535, 5724, 6273, 6519, 6970, 7155, 7380, 8109, 8364, 8692, 9010, 9180, 9540, 10455, 10812, 10865, 11070, 12546, 13038, 13515, 13940, 14310, 16218, 18020, 18819, 19557, 20910, 21730, 22140, 24327, 25092, 26076, 27030, 28620, 31365, 32436, 32595, 36941, 37638, 39114, 40545, 41820, 43460, 48654, 54060, 58671, 62730, 65190, 73882, 75276, 78228, 81090, 94095, 97308, 97785, 110823, 117342, 121635, 125460, 130380, 147764, 162180, 184705, 188190, 195570, 221646, 234684, 243270, 293355, 332469, 369410, 376380, 391140, 443292, 486540, 554115, 586710, 664938, 738820, 997407, 1108230, 1173420, 1329876, 1662345, 1994814, 2216460, 3324690, 3989628, 4987035, 6649380, 9974070, 19948140]

約数ペア:

[(1, 19948140), (2, 9974070), (3, 6649380), (4, 4987035), (5, 3989628), (6, 3324690), (9, 2216460), (10, 1994814), (12, 1662345), (15, 1329876), (17, 1173420), (18, 1108230), (20, 997407), (27, 738820), (30, 664938), (34, 586710), (36, 554115), (41, 486540), (45, 443292), (51, 391140), (53, 376380), (54, 369410), (60, 332469), (68, 293355), (82, 243270), (85, 234684), (90, 221646), (102, 195570), (106, 188190), (108, 184705), (123, 162180), (135, 147764), (153, 130380), (159, 125460), (164, 121635), (170, 117342), (180, 110823), (204, 97785), (205, 97308), (212, 94095), (246, 81090), (255, 78228), (265, 75276), (270, 73882), (306, 65190), (318, 62730), (340, 58671), (369, 54060), (410, 48654), (459, 43460), (477, 41820), (492, 40545), (510, 39114), (530, 37638), (540, 36941), (612, 32595), (615, 32436), (636, 31365), (697, 28620), (738, 27030), (765, 26076), (795, 25092), (820, 24327), (901, 22140), (918, 21730), (954, 20910), (1020, 19557), (1060, 18819), (1107, 18020), (1230, 16218), (1394, 14310), (1431, 13940), (1476, 13515), (1530, 13038), (1590, 12546), (1802, 11070), (1836, 10865), (1845, 10812), (1908, 10455), (2091, 9540), (2173, 9180), (2214, 9010), (2295, 8692), (2385, 8364), (2460, 8109), (2703, 7380), (2788, 7155), (2862, 6970), (3060, 6519), (3180, 6273), (3485, 5724), (3604, 5535), (3690, 5406), (4182, 4770), (4346, 4590), (4428, 4505)]