18780650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2333}}^1$

素因数の和:2375

約数の個数: 48

約数和(自身を含む): 41675904

約数和(自身を除く): 22895254

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 161, 175, 230, 322, 350, 575, 805, 1150, 1610, 2333, 4025, 4666, 8050, 11665, 16331, 23330, 32662, 53659, 58325, 81655, 107318, 116650, 163310, 268295, 375613, 408275, 536590, 751226, 816550, 1341475, 1878065, 2682950, 3756130, 9390325, 18780650]

約数ペア:

[(1, 18780650), (2, 9390325), (5, 3756130), (7, 2682950), (10, 1878065), (14, 1341475), (23, 816550), (25, 751226), (35, 536590), (46, 408275), (50, 375613), (70, 268295), (115, 163310), (161, 116650), (175, 107318), (230, 81655), (322, 58325), (350, 53659), (575, 32662), (805, 23330), (1150, 16331), (1610, 11665), (2333, 8050), (4025, 4666)]