19556800

素因数分解:

$2^6\times 5^2\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:758

約数の個数: 84

約数和(自身を含む): 51023520

約数和(自身を除く): 31466720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 136, 160, 170, 200, 272, 320, 340, 400, 425, 544, 680, 719, 800, 850, 1088, 1360, 1438, 1600, 1700, 2720, 2876, 3400, 3595, 5440, 5752, 6800, 7190, 11504, 12223, 13600, 14380, 17975, 23008, 24446, 27200, 28760, 35950, 46016, 48892, 57520, 61115, 71900, 97784, 115040, 122230, 143800, 195568, 230080, 244460, 287600, 305575, 391136, 488920, 575200, 611150, 782272, 977840, 1150400, 1222300, 1955680, 2444600, 3911360, 4889200, 9778400, 19556800]

約数ペア:

[(1, 19556800), (2, 9778400), (4, 4889200), (5, 3911360), (8, 2444600), (10, 1955680), (16, 1222300), (17, 1150400), (20, 977840), (25, 782272), (32, 611150), (34, 575200), (40, 488920), (50, 391136), (64, 305575), (68, 287600), (80, 244460), (85, 230080), (100, 195568), (136, 143800), (160, 122230), (170, 115040), (200, 97784), (272, 71900), (320, 61115), (340, 57520), (400, 48892), (425, 46016), (544, 35950), (680, 28760), (719, 27200), (800, 24446), (850, 23008), (1088, 17975), (1360, 14380), (1438, 13600), (1600, 12223), (1700, 11504), (2720, 7190), (2876, 6800), (3400, 5752), (3595, 5440)]