216909280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:481

約数の個数: 144

約数和(自身を含む): 605873520

約数和(自身を除く): 388964240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 73, 80, 98, 112, 140, 146, 160, 196, 224, 245, 280, 292, 365, 379, 392, 490, 511, 560, 584, 730, 758, 784, 980, 1022, 1120, 1168, 1460, 1516, 1568, 1895, 1960, 2044, 2336, 2555, 2653, 2920, 3032, 3577, 3790, 3920, 4088, 5110, 5306, 5840, 6064, 7154, 7580, 7840, 8176, 10220, 10612, 11680, 12128, 13265, 14308, 15160, 16352, 17885, 18571, 20440, 21224, 26530, 27667, 28616, 30320, 35770, 37142, 40880, 42448, 53060, 55334, 57232, 60640, 71540, 74284, 81760, 84896, 92855, 106120, 110668, 114464, 138335, 143080, 148568, 185710, 193669, 212240, 221336, 276670, 286160, 297136, 371420, 387338, 424480, 442672, 553340, 572320, 594272, 742840, 774676, 885344, 968345, 1106680, 1355683, 1485680, 1549352, 1936690, 2213360, 2711366, 2971360, 3098704, 3873380, 4426720, 5422732, 6197408, 6778415, 7746760, 10845464, 13556830, 15493520, 21690928, 27113660, 30987040, 43381856, 54227320, 108454640, 216909280]

約数ペア:

[(1, 216909280), (2, 108454640), (4, 54227320), (5, 43381856), (7, 30987040), (8, 27113660), (10, 21690928), (14, 15493520), (16, 13556830), (20, 10845464), (28, 7746760), (32, 6778415), (35, 6197408), (40, 5422732), (49, 4426720), (56, 3873380), (70, 3098704), (73, 2971360), (80, 2711366), (98, 2213360), (112, 1936690), (140, 1549352), (146, 1485680), (160, 1355683), (196, 1106680), (224, 968345), (245, 885344), (280, 774676), (292, 742840), (365, 594272), (379, 572320), (392, 553340), (490, 442672), (511, 424480), (560, 387338), (584, 371420), (730, 297136), (758, 286160), (784, 276670), (980, 221336), (1022, 212240), (1120, 193669), (1168, 185710), (1460, 148568), (1516, 143080), (1568, 138335), (1895, 114464), (1960, 110668), (2044, 106120), (2336, 92855), (2555, 84896), (2653, 81760), (2920, 74284), (3032, 71540), (3577, 60640), (3790, 57232), (3920, 55334), (4088, 53060), (5110, 42448), (5306, 40880), (5840, 37142), (6064, 35770), (7154, 30320), (7580, 28616), (7840, 27667), (8176, 26530), (10220, 21224), (10612, 20440), (11680, 18571), (12128, 17885), (13265, 16352), (14308, 15160)]