21783800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 55242000

約数和(自身を除く): 33458200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 43, 50, 68, 85, 86, 100, 136, 149, 170, 172, 200, 215, 298, 340, 344, 425, 430, 596, 680, 731, 745, 850, 860, 1075, 1192, 1462, 1490, 1700, 1720, 2150, 2533, 2924, 2980, 3400, 3655, 3725, 4300, 5066, 5848, 5960, 6407, 7310, 7450, 8600, 10132, 12665, 12814, 14620, 14900, 18275, 20264, 25330, 25628, 29240, 29800, 32035, 36550, 50660, 51256, 63325, 64070, 73100, 101320, 108919, 126650, 128140, 146200, 160175, 217838, 253300, 256280, 320350, 435676, 506600, 544595, 640700, 871352, 1089190, 1281400, 2178380, 2722975, 4356760, 5445950, 10891900, 21783800]

約数ペア:

[(1, 21783800), (2, 10891900), (4, 5445950), (5, 4356760), (8, 2722975), (10, 2178380), (17, 1281400), (20, 1089190), (25, 871352), (34, 640700), (40, 544595), (43, 506600), (50, 435676), (68, 320350), (85, 256280), (86, 253300), (100, 217838), (136, 160175), (149, 146200), (170, 128140), (172, 126650), (200, 108919), (215, 101320), (298, 73100), (340, 64070), (344, 63325), (425, 51256), (430, 50660), (596, 36550), (680, 32035), (731, 29800), (745, 29240), (850, 25628), (860, 25330), (1075, 20264), (1192, 18275), (1462, 14900), (1490, 14620), (1700, 12814), (1720, 12665), (2150, 10132), (2533, 8600), (2924, 7450), (2980, 7310), (3400, 6407), (3655, 5960), (3725, 5848), (4300, 5066)]