28817955

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 52262496

約数和(自身を除く): 23444541

約数列:

[1, 3, 5, 9, 15, 43, 45, 53, 129, 159, 215, 265, 281, 387, 477, 645, 795, 843, 1405, 1935, 2279, 2385, 2529, 4215, 6837, 11395, 12083, 12645, 14893, 20511, 34185, 36249, 44679, 60415, 74465, 102555, 108747, 134037, 181245, 223395, 543735, 640399, 670185, 1921197, 3201995, 5763591, 9605985, 28817955]

約数ペア:

[(1, 28817955), (3, 9605985), (5, 5763591), (9, 3201995), (15, 1921197), (43, 670185), (45, 640399), (53, 543735), (129, 223395), (159, 181245), (215, 134037), (265, 108747), (281, 102555), (387, 74465), (477, 60415), (645, 44679), (795, 36249), (843, 34185), (1405, 20511), (1935, 14893), (2279, 12645), (2385, 12083), (2529, 11395), (4215, 6837)]