197778420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{156967}}^1$

素因数の和:156989

約数の個数: 72

約数和(自身を含む): 685636224

約数和(自身を除く): 487857804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 156967, 313934, 470901, 627868, 784835, 941802, 1098769, 1412703, 1569670, 1883604, 2197538, 2354505, 2825406, 3139340, 3296307, 4395076, 4709010, 5493845, 5650812, 6592614, 7063515, 9418020, 9888921, 10987690, 13185228, 14127030, 16481535, 19777842, 21975380, 28254060, 32963070, 39555684, 49444605, 65926140, 98889210, 197778420]

約数ペア:

[(1, 197778420), (2, 98889210), (3, 65926140), (4, 49444605), (5, 39555684), (6, 32963070), (7, 28254060), (9, 21975380), (10, 19777842), (12, 16481535), (14, 14127030), (15, 13185228), (18, 10987690), (20, 9888921), (21, 9418020), (28, 7063515), (30, 6592614), (35, 5650812), (36, 5493845), (42, 4709010), (45, 4395076), (60, 3296307), (63, 3139340), (70, 2825406), (84, 2354505), (90, 2197538), (105, 1883604), (126, 1569670), (140, 1412703), (180, 1098769), (210, 941802), (252, 784835), (315, 627868), (420, 470901), (630, 313934), (1260, 156967)]