78870400

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{503}}^1$

素因数の和:541

約数の個数: 144

約数和(自身を含む): 227094840

約数和(自身を除く): 148224440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 448, 490, 503, 560, 640, 700, 784, 800, 896, 980, 1006, 1120, 1225, 1400, 1568, 1600, 1960, 2012, 2240, 2450, 2515, 2800, 3136, 3200, 3521, 3920, 4024, 4480, 4900, 5030, 5600, 6272, 7042, 7840, 8048, 9800, 10060, 11200, 12575, 14084, 15680, 16096, 17605, 19600, 20120, 22400, 24647, 25150, 28168, 31360, 32192, 35210, 39200, 40240, 49294, 50300, 56336, 64384, 70420, 78400, 80480, 88025, 98588, 100600, 112672, 123235, 140840, 156800, 160960, 176050, 197176, 201200, 225344, 246470, 281680, 321920, 352100, 394352, 402400, 450688, 492940, 563360, 616175, 704200, 788704, 804800, 985880, 1126720, 1232350, 1408400, 1577408, 1609600, 1971760, 2253440, 2464700, 2816800, 3154816, 3943520, 4929400, 5633600, 7887040, 9858800, 11267200, 15774080, 19717600, 39435200, 78870400]

約数ペア:

[(1, 78870400), (2, 39435200), (4, 19717600), (5, 15774080), (7, 11267200), (8, 9858800), (10, 7887040), (14, 5633600), (16, 4929400), (20, 3943520), (25, 3154816), (28, 2816800), (32, 2464700), (35, 2253440), (40, 1971760), (49, 1609600), (50, 1577408), (56, 1408400), (64, 1232350), (70, 1126720), (80, 985880), (98, 804800), (100, 788704), (112, 704200), (128, 616175), (140, 563360), (160, 492940), (175, 450688), (196, 402400), (200, 394352), (224, 352100), (245, 321920), (280, 281680), (320, 246470), (350, 225344), (392, 201200), (400, 197176), (448, 176050), (490, 160960), (503, 156800), (560, 140840), (640, 123235), (700, 112672), (784, 100600), (800, 98588), (896, 88025), (980, 80480), (1006, 78400), (1120, 70420), (1225, 64384), (1400, 56336), (1568, 50300), (1600, 49294), (1960, 40240), (2012, 39200), (2240, 35210), (2450, 32192), (2515, 31360), (2800, 28168), (3136, 25150), (3200, 24647), (3521, 22400), (3920, 20120), (4024, 19600), (4480, 17605), (4900, 16096), (5030, 15680), (5600, 14084), (6272, 12575), (7042, 11200), (7840, 10060), (8048, 9800)]