638415840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30931}}^1$

素因数の和:30992

約数の個数: 96

約数和(自身を含む): 2057844096

約数和(自身を除く): 1419428256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 1032, 1290, 1376, 1720, 2064, 2580, 3440, 4128, 5160, 6880, 10320, 20640, 30931, 61862, 92793, 123724, 154655, 185586, 247448, 309310, 371172, 463965, 494896, 618620, 742344, 927930, 989792, 1237240, 1330033, 1484688, 1855860, 2474480, 2660066, 2969376, 3711720, 3990099, 4948960, 5320132, 6650165, 7423440, 7980198, 10640264, 13300330, 14846880, 15960396, 19950495, 21280528, 26600660, 31920792, 39900990, 42561056, 53201320, 63841584, 79801980, 106402640, 127683168, 159603960, 212805280, 319207920, 638415840]

約数ペア:

[(1, 638415840), (2, 319207920), (3, 212805280), (4, 159603960), (5, 127683168), (6, 106402640), (8, 79801980), (10, 63841584), (12, 53201320), (15, 42561056), (16, 39900990), (20, 31920792), (24, 26600660), (30, 21280528), (32, 19950495), (40, 15960396), (43, 14846880), (48, 13300330), (60, 10640264), (80, 7980198), (86, 7423440), (96, 6650165), (120, 5320132), (129, 4948960), (160, 3990099), (172, 3711720), (215, 2969376), (240, 2660066), (258, 2474480), (344, 1855860), (430, 1484688), (480, 1330033), (516, 1237240), (645, 989792), (688, 927930), (860, 742344), (1032, 618620), (1290, 494896), (1376, 463965), (1720, 371172), (2064, 309310), (2580, 247448), (3440, 185586), (4128, 154655), (5160, 123724), (6880, 92793), (10320, 61862), (20640, 30931)]