28591280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21023}}^1$

素因数の和:21053

約数の個数: 40

約数和(自身を含む): 70388352

約数和(自身を除く): 41797072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21023, 42046, 84092, 105115, 168184, 210230, 336368, 357391, 420460, 714782, 840920, 1429564, 1681840, 1786955, 2859128, 3573910, 5718256, 7147820, 14295640, 28591280]

約数ペア:

[(1, 28591280), (2, 14295640), (4, 7147820), (5, 5718256), (8, 3573910), (10, 2859128), (16, 1786955), (17, 1681840), (20, 1429564), (34, 840920), (40, 714782), (68, 420460), (80, 357391), (85, 336368), (136, 210230), (170, 168184), (272, 105115), (340, 84092), (680, 42046), (1360, 21023)]