397777140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{1523}}^1$

素因数の和:2989

約数の個数: 72

約数和(自身を含む): 1208215008

約数和(自身を除く): 810437868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1451, 1523, 2902, 3046, 4353, 4569, 5804, 6092, 7255, 7615, 8706, 9138, 13059, 13707, 14510, 15230, 17412, 18276, 21765, 22845, 26118, 27414, 29020, 30460, 43530, 45690, 52236, 54828, 65295, 68535, 87060, 91380, 130590, 137070, 261180, 274140, 2209873, 4419746, 6629619, 8839492, 11049365, 13259238, 19888857, 22098730, 26518476, 33148095, 39777714, 44197460, 66296190, 79555428, 99444285, 132592380, 198888570, 397777140]

約数ペア:

[(1, 397777140), (2, 198888570), (3, 132592380), (4, 99444285), (5, 79555428), (6, 66296190), (9, 44197460), (10, 39777714), (12, 33148095), (15, 26518476), (18, 22098730), (20, 19888857), (30, 13259238), (36, 11049365), (45, 8839492), (60, 6629619), (90, 4419746), (180, 2209873), (1451, 274140), (1523, 261180), (2902, 137070), (3046, 130590), (4353, 91380), (4569, 87060), (5804, 68535), (6092, 65295), (7255, 54828), (7615, 52236), (8706, 45690), (9138, 43530), (13059, 30460), (13707, 29020), (14510, 27414), (15230, 26118), (17412, 22845), (18276, 21765)]