290409280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{18521}}^1$

素因数の和:18552

約数の個数: 84

約数和(自身を含む): 804484548

約数和(自身を除く): 514075268

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 18521, 37042, 74084, 92605, 129647, 148168, 185210, 259294, 296336, 370420, 518588, 592672, 648235, 740840, 907529, 1037176, 1185344, 1296470, 1481680, 1815058, 2074352, 2592940, 2963360, 3630116, 4148704, 4537645, 5185880, 5926720, 7260232, 8297408, 9075290, 10371760, 14520464, 18150580, 20743520, 29040928, 36301160, 41487040, 58081856, 72602320, 145204640, 290409280]

約数ペア:

[(1, 290409280), (2, 145204640), (4, 72602320), (5, 58081856), (7, 41487040), (8, 36301160), (10, 29040928), (14, 20743520), (16, 18150580), (20, 14520464), (28, 10371760), (32, 9075290), (35, 8297408), (40, 7260232), (49, 5926720), (56, 5185880), (64, 4537645), (70, 4148704), (80, 3630116), (98, 2963360), (112, 2592940), (140, 2074352), (160, 1815058), (196, 1481680), (224, 1296470), (245, 1185344), (280, 1037176), (320, 907529), (392, 740840), (448, 648235), (490, 592672), (560, 518588), (784, 370420), (980, 296336), (1120, 259294), (1568, 185210), (1960, 148168), (2240, 129647), (3136, 92605), (3920, 74084), (7840, 37042), (15680, 18521)]