19417680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 120

約数和(自身を含む): 66011400

約数和(自身を除く): 46593720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 149, 180, 181, 240, 298, 360, 362, 447, 543, 596, 720, 724, 745, 894, 905, 1086, 1192, 1341, 1448, 1490, 1629, 1788, 1810, 2172, 2235, 2384, 2682, 2715, 2896, 2980, 3258, 3576, 3620, 4344, 4470, 5364, 5430, 5960, 6516, 6705, 7152, 7240, 8145, 8688, 8940, 10728, 10860, 11920, 13032, 13410, 14480, 16290, 17880, 21456, 21720, 26064, 26820, 26969, 32580, 35760, 43440, 53640, 53938, 65160, 80907, 107280, 107876, 130320, 134845, 161814, 215752, 242721, 269690, 323628, 404535, 431504, 485442, 539380, 647256, 809070, 970884, 1078760, 1213605, 1294512, 1618140, 1941768, 2157520, 2427210, 3236280, 3883536, 4854420, 6472560, 9708840, 19417680]

約数ペア:

[(1, 19417680), (2, 9708840), (3, 6472560), (4, 4854420), (5, 3883536), (6, 3236280), (8, 2427210), (9, 2157520), (10, 1941768), (12, 1618140), (15, 1294512), (16, 1213605), (18, 1078760), (20, 970884), (24, 809070), (30, 647256), (36, 539380), (40, 485442), (45, 431504), (48, 404535), (60, 323628), (72, 269690), (80, 242721), (90, 215752), (120, 161814), (144, 134845), (149, 130320), (180, 107876), (181, 107280), (240, 80907), (298, 65160), (360, 53938), (362, 53640), (447, 43440), (543, 35760), (596, 32580), (720, 26969), (724, 26820), (745, 26064), (894, 21720), (905, 21456), (1086, 17880), (1192, 16290), (1341, 14480), (1448, 13410), (1490, 13032), (1629, 11920), (1788, 10860), (1810, 10728), (2172, 8940), (2235, 8688), (2384, 8145), (2682, 7240), (2715, 7152), (2896, 6705), (2980, 6516), (3258, 5960), (3576, 5430), (3620, 5364), (4344, 4470)]