17964380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:843

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 27885508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 797, 805, 980, 1127, 1594, 1610, 2254, 3188, 3220, 3985, 4508, 5579, 5635, 7970, 11158, 11270, 15940, 18331, 22316, 22540, 27895, 36662, 39053, 55790, 73324, 78106, 91655, 111580, 128317, 156212, 183310, 195265, 256634, 366620, 390530, 513268, 641585, 781060, 898219, 1283170, 1796438, 2566340, 3592876, 4491095, 8982190, 17964380]

約数ペア:

[(1, 17964380), (2, 8982190), (4, 4491095), (5, 3592876), (7, 2566340), (10, 1796438), (14, 1283170), (20, 898219), (23, 781060), (28, 641585), (35, 513268), (46, 390530), (49, 366620), (70, 256634), (92, 195265), (98, 183310), (115, 156212), (140, 128317), (161, 111580), (196, 91655), (230, 78106), (245, 73324), (322, 55790), (460, 39053), (490, 36662), (644, 27895), (797, 22540), (805, 22316), (980, 18331), (1127, 15940), (1594, 11270), (1610, 11158), (2254, 7970), (3188, 5635), (3220, 5579), (3985, 4508)]