205387780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18371}}^1$

素因数の和:18436

約数の個数: 48

約数和(自身を含む): 475320384

約数和(自身を除く): 269932604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 18371, 36742, 73484, 91855, 183710, 238823, 367420, 477646, 789953, 955292, 1194115, 1579906, 2388230, 3159812, 3949765, 4776460, 7899530, 10269389, 15799060, 20538778, 41077556, 51346945, 102693890, 205387780]

約数ペア:

[(1, 205387780), (2, 102693890), (4, 51346945), (5, 41077556), (10, 20538778), (13, 15799060), (20, 10269389), (26, 7899530), (43, 4776460), (52, 3949765), (65, 3159812), (86, 2388230), (130, 1579906), (172, 1194115), (215, 955292), (260, 789953), (430, 477646), (559, 367420), (860, 238823), (1118, 183710), (2236, 91855), (2795, 73484), (5590, 36742), (11180, 18371)]