1389616990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{23509}}^1$

素因数の和:23796

約数の個数: 32

約数和(自身を含む): 2620330560

約数和(自身を除く): 1230713570

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 257, 514, 1285, 2570, 5911, 11822, 23509, 29555, 47018, 59110, 117545, 235090, 540707, 1081414, 2703535, 5407070, 6041813, 12083626, 30209065, 60418130, 138961699, 277923398, 694808495, 1389616990]

約数ペア:

[(1, 1389616990), (2, 694808495), (5, 277923398), (10, 138961699), (23, 60418130), (46, 30209065), (115, 12083626), (230, 6041813), (257, 5407070), (514, 2703535), (1285, 1081414), (2570, 540707), (5911, 235090), (11822, 117545), (23509, 59110), (29555, 47018)]