1999965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 64

約数和(自身を含む): 3981312

約数和(自身を除く): 1981347

約数列:

[1, 3, 5, 11, 15, 17, 23, 31, 33, 51, 55, 69, 85, 93, 115, 155, 165, 187, 253, 255, 341, 345, 391, 465, 527, 561, 713, 759, 935, 1023, 1173, 1265, 1581, 1705, 1955, 2139, 2635, 2805, 3565, 3795, 4301, 5115, 5797, 5865, 7843, 7905, 10695, 12121, 12903, 17391, 21505, 23529, 28985, 36363, 39215, 60605, 64515, 86955, 117645, 133331, 181815, 399993, 666655, 1999965]

約数ペア:

[(1, 1999965), (3, 666655), (5, 399993), (11, 181815), (15, 133331), (17, 117645), (23, 86955), (31, 64515), (33, 60605), (51, 39215), (55, 36363), (69, 28985), (85, 23529), (93, 21505), (115, 17391), (155, 12903), (165, 12121), (187, 10695), (253, 7905), (255, 7843), (341, 5865), (345, 5797), (391, 5115), (465, 4301), (527, 3795), (561, 3565), (713, 2805), (759, 2635), (935, 2139), (1023, 1955), (1173, 1705), (1265, 1581)]