1900697825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 2611874496

約数和(自身を除く): 711176671

約数列:

[1, 5, 13, 25, 43, 65, 215, 277, 325, 491, 559, 1075, 1385, 2455, 2795, 3601, 6383, 6925, 11911, 12275, 13975, 18005, 21113, 31915, 59555, 90025, 105565, 136007, 154843, 159575, 274469, 297775, 527825, 680035, 774215, 1372345, 1768091, 3400175, 3871075, 5848301, 6861725, 8840455, 29241505, 44202275, 76027913, 146207525, 380139565, 1900697825]

約数ペア:

[(1, 1900697825), (5, 380139565), (13, 146207525), (25, 76027913), (43, 44202275), (65, 29241505), (215, 8840455), (277, 6861725), (325, 5848301), (491, 3871075), (559, 3400175), (1075, 1768091), (1385, 1372345), (2455, 774215), (2795, 680035), (3601, 527825), (6383, 297775), (6925, 274469), (11911, 159575), (12275, 154843), (13975, 136007), (18005, 105565), (21113, 90025), (31915, 59555)]