15780821720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1\times {\mathrm{8353}}^1$

素因数の和:9084

約数の個数: 64

約数和(自身を含む): 36053190720

約数和(自身を除く): 20272369000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 647, 730, 1294, 1460, 2588, 2920, 3235, 5176, 6470, 8353, 12940, 16706, 25880, 33412, 41765, 47231, 66824, 83530, 94462, 167060, 188924, 236155, 334120, 377848, 472310, 609769, 944620, 1219538, 1889240, 2439076, 3048845, 4878152, 5404391, 6097690, 10808782, 12195380, 21617564, 24390760, 27021955, 43235128, 54043910, 108087820, 216175640, 394520543, 789041086, 1578082172, 1972602715, 3156164344, 3945205430, 7890410860, 15780821720]

約数ペア:

[(1, 15780821720), (2, 7890410860), (4, 3945205430), (5, 3156164344), (8, 1972602715), (10, 1578082172), (20, 789041086), (40, 394520543), (73, 216175640), (146, 108087820), (292, 54043910), (365, 43235128), (584, 27021955), (647, 24390760), (730, 21617564), (1294, 12195380), (1460, 10808782), (2588, 6097690), (2920, 5404391), (3235, 4878152), (5176, 3048845), (6470, 2439076), (8353, 1889240), (12940, 1219538), (16706, 944620), (25880, 609769), (33412, 472310), (41765, 377848), (47231, 334120), (66824, 236155), (83530, 188924), (94462, 167060)]