18078550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 72

約数和(自身を含む): 40202784

約数和(自身を除く): 22124234

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 49, 50, 70, 94, 98, 157, 175, 235, 245, 314, 329, 350, 470, 490, 658, 785, 1099, 1175, 1225, 1570, 1645, 2198, 2303, 2350, 2450, 3290, 3925, 4606, 5495, 7379, 7693, 7850, 8225, 10990, 11515, 14758, 15386, 16450, 23030, 27475, 36895, 38465, 51653, 54950, 57575, 73790, 76930, 103306, 115150, 184475, 192325, 258265, 361571, 368950, 384650, 516530, 723142, 1291325, 1807855, 2582650, 3615710, 9039275, 18078550]

約数ペア:

[(1, 18078550), (2, 9039275), (5, 3615710), (7, 2582650), (10, 1807855), (14, 1291325), (25, 723142), (35, 516530), (47, 384650), (49, 368950), (50, 361571), (70, 258265), (94, 192325), (98, 184475), (157, 115150), (175, 103306), (235, 76930), (245, 73790), (314, 57575), (329, 54950), (350, 51653), (470, 38465), (490, 36895), (658, 27475), (785, 23030), (1099, 16450), (1175, 15386), (1225, 14758), (1570, 11515), (1645, 10990), (2198, 8225), (2303, 7850), (2350, 7693), (2450, 7379), (3290, 5495), (3925, 4606)]