401266880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:351

約数の個数: 168

約数和(自身を含む): 1125461808

約数和(自身を除く): 724194928

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, 157, 160, 163, 196, 224, 245, 280, 314, 320, 326, 392, 448, 490, 560, 628, 652, 784, 785, 815, 980, 1099, 1120, 1141, 1256, 1304, 1568, 1570, 1630, 1960, 2198, 2240, 2282, 2512, 2608, 3136, 3140, 3260, 3920, 4396, 4564, 5024, 5216, 5495, 5705, 6280, 6520, 7693, 7840, 7987, 8792, 9128, 10048, 10432, 10990, 11410, 12560, 13040, 15386, 15680, 15974, 17584, 18256, 21980, 22820, 25120, 25591, 26080, 30772, 31948, 35168, 36512, 38465, 39935, 43960, 45640, 50240, 51182, 52160, 61544, 63896, 70336, 73024, 76930, 79870, 87920, 91280, 102364, 123088, 127792, 127955, 153860, 159740, 175840, 179137, 182560, 204728, 246176, 255584, 255910, 307720, 319480, 351680, 358274, 365120, 409456, 492352, 511168, 511820, 615440, 638960, 716548, 818912, 895685, 1023640, 1230880, 1253959, 1277920, 1433096, 1637824, 1791370, 2047280, 2461760, 2507918, 2555840, 2866192, 3582740, 4094560, 5015836, 5732384, 6269795, 7165480, 8189120, 10031672, 11464768, 12539590, 14330960, 20063344, 25079180, 28661920, 40126688, 50158360, 57323840, 80253376, 100316720, 200633440, 401266880]

約数ペア:

[(1, 401266880), (2, 200633440), (4, 100316720), (5, 80253376), (7, 57323840), (8, 50158360), (10, 40126688), (14, 28661920), (16, 25079180), (20, 20063344), (28, 14330960), (32, 12539590), (35, 11464768), (40, 10031672), (49, 8189120), (56, 7165480), (64, 6269795), (70, 5732384), (80, 5015836), (98, 4094560), (112, 3582740), (140, 2866192), (157, 2555840), (160, 2507918), (163, 2461760), (196, 2047280), (224, 1791370), (245, 1637824), (280, 1433096), (314, 1277920), (320, 1253959), (326, 1230880), (392, 1023640), (448, 895685), (490, 818912), (560, 716548), (628, 638960), (652, 615440), (784, 511820), (785, 511168), (815, 492352), (980, 409456), (1099, 365120), (1120, 358274), (1141, 351680), (1256, 319480), (1304, 307720), (1568, 255910), (1570, 255584), (1630, 246176), (1960, 204728), (2198, 182560), (2240, 179137), (2282, 175840), (2512, 159740), (2608, 153860), (3136, 127955), (3140, 127792), (3260, 123088), (3920, 102364), (4396, 91280), (4564, 87920), (5024, 79870), (5216, 76930), (5495, 73024), (5705, 70336), (6280, 63896), (6520, 61544), (7693, 52160), (7840, 51182), (7987, 50240), (8792, 45640), (9128, 43960), (10048, 39935), (10432, 38465), (10990, 36512), (11410, 35168), (12560, 31948), (13040, 30772), (15386, 26080), (15680, 25591), (15974, 25120), (17584, 22820), (18256, 21980)]