21840900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1549}}^1$

素因数の和:1613

約数の個数: 72

約数和(自身を含む): 64579200

約数和(自身を除く): 42738300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 60, 75, 94, 100, 141, 150, 188, 235, 282, 300, 470, 564, 705, 940, 1175, 1410, 1549, 2350, 2820, 3098, 3525, 4647, 4700, 6196, 7050, 7745, 9294, 14100, 15490, 18588, 23235, 30980, 38725, 46470, 72803, 77450, 92940, 116175, 145606, 154900, 218409, 232350, 291212, 364015, 436818, 464700, 728030, 873636, 1092045, 1456060, 1820075, 2184090, 3640150, 4368180, 5460225, 7280300, 10920450, 21840900]

約数ペア:

[(1, 21840900), (2, 10920450), (3, 7280300), (4, 5460225), (5, 4368180), (6, 3640150), (10, 2184090), (12, 1820075), (15, 1456060), (20, 1092045), (25, 873636), (30, 728030), (47, 464700), (50, 436818), (60, 364015), (75, 291212), (94, 232350), (100, 218409), (141, 154900), (150, 145606), (188, 116175), (235, 92940), (282, 77450), (300, 72803), (470, 46470), (564, 38725), (705, 30980), (940, 23235), (1175, 18588), (1410, 15490), (1549, 14100), (2350, 9294), (2820, 7745), (3098, 7050), (3525, 6196), (4647, 4700)]