27800240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26731}}^1$

素因数の和:26757

約数の個数: 40

約数和(自身を含む): 69610128

約数和(自身を除く): 41809888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 26731, 53462, 106924, 133655, 213848, 267310, 347503, 427696, 534620, 695006, 1069240, 1390012, 1737515, 2138480, 2780024, 3475030, 5560048, 6950060, 13900120, 27800240]

約数ペア:

[(1, 27800240), (2, 13900120), (4, 6950060), (5, 5560048), (8, 3475030), (10, 2780024), (13, 2138480), (16, 1737515), (20, 1390012), (26, 1069240), (40, 695006), (52, 534620), (65, 427696), (80, 347503), (104, 267310), (130, 213848), (208, 133655), (260, 106924), (520, 53462), (1040, 26731)]