81331650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1213}}^1$

素因数の和:1380

約数の個数: 72

約数和(自身を含む): 220158900

約数和(自身を除く): 138827250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 149, 150, 225, 298, 447, 450, 745, 894, 1213, 1341, 1490, 2235, 2426, 2682, 3639, 3725, 4470, 6065, 6705, 7278, 7450, 10917, 11175, 12130, 13410, 18195, 21834, 22350, 30325, 33525, 36390, 54585, 60650, 67050, 90975, 109170, 180737, 181950, 272925, 361474, 542211, 545850, 903685, 1084422, 1626633, 1807370, 2711055, 3253266, 4518425, 5422110, 8133165, 9036850, 13555275, 16266330, 27110550, 40665825, 81331650]

約数ペア:

[(1, 81331650), (2, 40665825), (3, 27110550), (5, 16266330), (6, 13555275), (9, 9036850), (10, 8133165), (15, 5422110), (18, 4518425), (25, 3253266), (30, 2711055), (45, 1807370), (50, 1626633), (75, 1084422), (90, 903685), (149, 545850), (150, 542211), (225, 361474), (298, 272925), (447, 181950), (450, 180737), (745, 109170), (894, 90975), (1213, 67050), (1341, 60650), (1490, 54585), (2235, 36390), (2426, 33525), (2682, 30325), (3639, 22350), (3725, 21834), (4470, 18195), (6065, 13410), (6705, 12130), (7278, 11175), (7450, 10917)]