281249384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 582167040

約数和(自身を除く): 300917656

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 181, 223, 268, 362, 446, 536, 724, 871, 892, 1448, 1742, 1784, 2353, 2899, 3484, 4706, 5798, 6968, 9412, 11596, 12127, 14941, 18824, 23192, 24254, 29882, 40363, 48508, 59764, 80726, 97016, 119528, 157651, 161452, 194233, 315302, 322904, 388466, 524719, 630604, 776932, 1049438, 1261208, 1553864, 2098876, 2704321, 4197752, 5408642, 10817284, 21634568, 35156173, 70312346, 140624692, 281249384]

約数ペア:

[(1, 281249384), (2, 140624692), (4, 70312346), (8, 35156173), (13, 21634568), (26, 10817284), (52, 5408642), (67, 4197752), (104, 2704321), (134, 2098876), (181, 1553864), (223, 1261208), (268, 1049438), (362, 776932), (446, 630604), (536, 524719), (724, 388466), (871, 322904), (892, 315302), (1448, 194233), (1742, 161452), (1784, 157651), (2353, 119528), (2899, 97016), (3484, 80726), (4706, 59764), (5798, 48508), (6968, 40363), (9412, 29882), (11596, 24254), (12127, 23192), (14941, 18824)]