19018480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18287}}^1$

素因数の和:18313

約数の個数: 40

約数和(自身を含む): 47621952

約数和(自身を除く): 28603472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18287, 36574, 73148, 91435, 146296, 182870, 237731, 292592, 365740, 475462, 731480, 950924, 1188655, 1462960, 1901848, 2377310, 3803696, 4754620, 9509240, 19018480]

約数ペア:

[(1, 19018480), (2, 9509240), (4, 4754620), (5, 3803696), (8, 2377310), (10, 1901848), (13, 1462960), (16, 1188655), (20, 950924), (26, 731480), (40, 475462), (52, 365740), (65, 292592), (80, 237731), (104, 182870), (130, 146296), (208, 91435), (260, 73148), (520, 36574), (1040, 18287)]