19668800

素因数分解:

$2^6\times 5^2\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:688

約数の個数: 84

約数和(自身を含む): 51023520

約数和(自身を除く): 31354720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 152, 160, 190, 200, 304, 320, 380, 400, 475, 608, 647, 760, 800, 950, 1216, 1294, 1520, 1600, 1900, 2588, 3040, 3235, 3800, 5176, 6080, 6470, 7600, 10352, 12293, 12940, 15200, 16175, 20704, 24586, 25880, 30400, 32350, 41408, 49172, 51760, 61465, 64700, 98344, 103520, 122930, 129400, 196688, 207040, 245860, 258800, 307325, 393376, 491720, 517600, 614650, 786752, 983440, 1035200, 1229300, 1966880, 2458600, 3933760, 4917200, 9834400, 19668800]

約数ペア:

[(1, 19668800), (2, 9834400), (4, 4917200), (5, 3933760), (8, 2458600), (10, 1966880), (16, 1229300), (19, 1035200), (20, 983440), (25, 786752), (32, 614650), (38, 517600), (40, 491720), (50, 393376), (64, 307325), (76, 258800), (80, 245860), (95, 207040), (100, 196688), (152, 129400), (160, 122930), (190, 103520), (200, 98344), (304, 64700), (320, 61465), (380, 51760), (400, 49172), (475, 41408), (608, 32350), (647, 30400), (760, 25880), (800, 24586), (950, 20704), (1216, 16175), (1294, 15200), (1520, 12940), (1600, 12293), (1900, 10352), (2588, 7600), (3040, 6470), (3235, 6080), (3800, 5176)]