19812480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:646

約数の個数: 128

約数和(自身を含む): 66977280

約数和(自身を除く): 47164800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 607, 640, 680, 816, 960, 1020, 1088, 1214, 1360, 1632, 1821, 1920, 2040, 2176, 2428, 2720, 3035, 3264, 3642, 4080, 4856, 5440, 6070, 6528, 7284, 8160, 9105, 9712, 10319, 10880, 12140, 14568, 16320, 18210, 19424, 20638, 24280, 29136, 30957, 32640, 36420, 38848, 41276, 48560, 51595, 58272, 61914, 72840, 77696, 82552, 97120, 103190, 116544, 123828, 145680, 154785, 165104, 194240, 206380, 233088, 247656, 291360, 309570, 330208, 388480, 412760, 495312, 582720, 619140, 660416, 825520, 990624, 1165440, 1238280, 1320832, 1651040, 1981248, 2476560, 3302080, 3962496, 4953120, 6604160, 9906240, 19812480]

約数ペア:

[(1, 19812480), (2, 9906240), (3, 6604160), (4, 4953120), (5, 3962496), (6, 3302080), (8, 2476560), (10, 1981248), (12, 1651040), (15, 1320832), (16, 1238280), (17, 1165440), (20, 990624), (24, 825520), (30, 660416), (32, 619140), (34, 582720), (40, 495312), (48, 412760), (51, 388480), (60, 330208), (64, 309570), (68, 291360), (80, 247656), (85, 233088), (96, 206380), (102, 194240), (120, 165104), (128, 154785), (136, 145680), (160, 123828), (170, 116544), (192, 103190), (204, 97120), (240, 82552), (255, 77696), (272, 72840), (320, 61914), (340, 58272), (384, 51595), (408, 48560), (480, 41276), (510, 38848), (544, 36420), (607, 32640), (640, 30957), (680, 29136), (816, 24280), (960, 20638), (1020, 19424), (1088, 18210), (1214, 16320), (1360, 14568), (1632, 12140), (1821, 10880), (1920, 10319), (2040, 9712), (2176, 9105), (2428, 8160), (2720, 7284), (3035, 6528), (3264, 6070), (3642, 5440), (4080, 4856)]