281300840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2441}}^1$

素因数の和:2562

約数の個数: 64

約数和(自身を含む): 657581760

約数和(自身を除く): 376280920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 172, 215, 268, 335, 344, 430, 536, 670, 860, 1340, 1720, 2441, 2680, 2881, 4882, 5762, 9764, 11524, 12205, 14405, 19528, 23048, 24410, 28810, 48820, 57620, 97640, 104963, 115240, 163547, 209926, 327094, 419852, 524815, 654188, 817735, 839704, 1049630, 1308376, 1635470, 2099260, 3270940, 4198520, 6541880, 7032521, 14065042, 28130084, 35162605, 56260168, 70325210, 140650420, 281300840]

約数ペア:

[(1, 281300840), (2, 140650420), (4, 70325210), (5, 56260168), (8, 35162605), (10, 28130084), (20, 14065042), (40, 7032521), (43, 6541880), (67, 4198520), (86, 3270940), (134, 2099260), (172, 1635470), (215, 1308376), (268, 1049630), (335, 839704), (344, 817735), (430, 654188), (536, 524815), (670, 419852), (860, 327094), (1340, 209926), (1720, 163547), (2441, 115240), (2680, 104963), (2881, 97640), (4882, 57620), (5762, 48820), (9764, 28810), (11524, 24410), (12205, 23048), (14405, 19528)]