2019990042

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{821}}^1$

素因数の和:1145

約数の個数: 128

約数和(自身を含む): 5378641920

約数和(自身を除く): 3358651878

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 126, 138, 161, 189, 207, 283, 322, 378, 414, 483, 566, 621, 821, 849, 966, 1242, 1449, 1642, 1698, 1981, 2463, 2547, 2898, 3962, 4347, 4926, 5094, 5747, 5943, 6509, 7389, 7641, 8694, 11494, 11886, 13018, 14778, 15282, 17241, 17829, 18883, 19527, 22167, 34482, 35658, 37766, 39054, 44334, 45563, 51723, 53487, 56649, 58581, 91126, 103446, 106974, 113298, 117162, 132181, 136689, 155169, 169947, 175743, 232343, 264362, 273378, 310338, 339894, 351486, 396543, 410067, 464686, 509841, 697029, 793086, 820134, 1019682, 1189629, 1230201, 1394058, 1626401, 2091087, 2379258, 2460402, 3252802, 3568887, 4182174, 4879203, 5343889, 6273261, 7137774, 9758406, 10687778, 12546522, 14637609, 16031667, 29275218, 32063334, 37407223, 43912827, 48095001, 74814446, 87825654, 96190002, 112221669, 144285003, 224443338, 288570006, 336665007, 673330014, 1009995021, 2019990042]

約数ペア:

[(1, 2019990042), (2, 1009995021), (3, 673330014), (6, 336665007), (7, 288570006), (9, 224443338), (14, 144285003), (18, 112221669), (21, 96190002), (23, 87825654), (27, 74814446), (42, 48095001), (46, 43912827), (54, 37407223), (63, 32063334), (69, 29275218), (126, 16031667), (138, 14637609), (161, 12546522), (189, 10687778), (207, 9758406), (283, 7137774), (322, 6273261), (378, 5343889), (414, 4879203), (483, 4182174), (566, 3568887), (621, 3252802), (821, 2460402), (849, 2379258), (966, 2091087), (1242, 1626401), (1449, 1394058), (1642, 1230201), (1698, 1189629), (1981, 1019682), (2463, 820134), (2547, 793086), (2898, 697029), (3962, 509841), (4347, 464686), (4926, 410067), (5094, 396543), (5747, 351486), (5943, 339894), (6509, 310338), (7389, 273378), (7641, 264362), (8694, 232343), (11494, 175743), (11886, 169947), (13018, 155169), (14778, 136689), (15282, 132181), (17241, 117162), (17829, 113298), (18883, 106974), (19527, 103446), (22167, 91126), (34482, 58581), (35658, 56649), (37766, 53487), (39054, 51723), (44334, 45563)]