1966880000

素因数分解:

$2^8\times 5^4\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:702

約数の個数: 180

約数和(自身を含む): 5172219360

約数和(自身を除く): 3205339360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 128, 152, 160, 190, 200, 250, 256, 304, 320, 380, 400, 475, 500, 608, 625, 640, 647, 760, 800, 950, 1000, 1216, 1250, 1280, 1294, 1520, 1600, 1900, 2000, 2375, 2432, 2500, 2588, 3040, 3200, 3235, 3800, 4000, 4750, 4864, 5000, 5176, 6080, 6400, 6470, 7600, 8000, 9500, 10000, 10352, 11875, 12160, 12293, 12940, 15200, 16000, 16175, 19000, 20000, 20704, 23750, 24320, 24586, 25880, 30400, 32000, 32350, 38000, 40000, 41408, 47500, 49172, 51760, 60800, 61465, 64700, 76000, 80000, 80875, 82816, 95000, 98344, 103520, 121600, 122930, 129400, 152000, 160000, 161750, 165632, 190000, 196688, 207040, 245860, 258800, 304000, 307325, 323500, 380000, 393376, 404375, 414080, 491720, 517600, 608000, 614650, 647000, 760000, 786752, 808750, 828160, 983440, 1035200, 1229300, 1294000, 1520000, 1536625, 1573504, 1617500, 1966880, 2070400, 2458600, 2588000, 3040000, 3073250, 3147008, 3235000, 3933760, 4140800, 4917200, 5176000, 6146500, 6470000, 7683125, 7867520, 9834400, 10352000, 12293000, 12940000, 15366250, 15735040, 19668800, 20704000, 24586000, 25880000, 30732500, 39337600, 49172000, 51760000, 61465000, 78675200, 98344000, 103520000, 122930000, 196688000, 245860000, 393376000, 491720000, 983440000, 1966880000]

約数ペア:

[(1, 1966880000), (2, 983440000), (4, 491720000), (5, 393376000), (8, 245860000), (10, 196688000), (16, 122930000), (19, 103520000), (20, 98344000), (25, 78675200), (32, 61465000), (38, 51760000), (40, 49172000), (50, 39337600), (64, 30732500), (76, 25880000), (80, 24586000), (95, 20704000), (100, 19668800), (125, 15735040), (128, 15366250), (152, 12940000), (160, 12293000), (190, 10352000), (200, 9834400), (250, 7867520), (256, 7683125), (304, 6470000), (320, 6146500), (380, 5176000), (400, 4917200), (475, 4140800), (500, 3933760), (608, 3235000), (625, 3147008), (640, 3073250), (647, 3040000), (760, 2588000), (800, 2458600), (950, 2070400), (1000, 1966880), (1216, 1617500), (1250, 1573504), (1280, 1536625), (1294, 1520000), (1520, 1294000), (1600, 1229300), (1900, 1035200), (2000, 983440), (2375, 828160), (2432, 808750), (2500, 786752), (2588, 760000), (3040, 647000), (3200, 614650), (3235, 608000), (3800, 517600), (4000, 491720), (4750, 414080), (4864, 404375), (5000, 393376), (5176, 380000), (6080, 323500), (6400, 307325), (6470, 304000), (7600, 258800), (8000, 245860), (9500, 207040), (10000, 196688), (10352, 190000), (11875, 165632), (12160, 161750), (12293, 160000), (12940, 152000), (15200, 129400), (16000, 122930), (16175, 121600), (19000, 103520), (20000, 98344), (20704, 95000), (23750, 82816), (24320, 80875), (24586, 80000), (25880, 76000), (30400, 64700), (32000, 61465), (32350, 60800), (38000, 51760), (40000, 49172), (41408, 47500)]