20859930

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:322

約数の個数: 160

約数和(自身を含む): 69277824

約数和(自身を除く): 48417894

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 81, 90, 91, 105, 117, 126, 130, 135, 162, 182, 189, 195, 210, 234, 270, 273, 283, 315, 351, 378, 390, 405, 455, 546, 566, 567, 585, 630, 702, 810, 819, 849, 910, 945, 1053, 1134, 1170, 1365, 1415, 1638, 1698, 1755, 1890, 1981, 2106, 2457, 2547, 2730, 2830, 2835, 3510, 3679, 3962, 4095, 4245, 4914, 5094, 5265, 5670, 5943, 7358, 7371, 7641, 8190, 8490, 9905, 10530, 11037, 11886, 12285, 12735, 14742, 15282, 17829, 18395, 19810, 22074, 22923, 24570, 25470, 25753, 29715, 33111, 35658, 36790, 36855, 38205, 45846, 51506, 53487, 55185, 59430, 66222, 73710, 76410, 77259, 89145, 99333, 106974, 110370, 114615, 128765, 154518, 160461, 165555, 178290, 198666, 229230, 231777, 257530, 267435, 297999, 320922, 331110, 386295, 463554, 496665, 534870, 595998, 695331, 772590, 802305, 993330, 1158885, 1390662, 1489995, 1604610, 2085993, 2317770, 2979990, 3476655, 4171986, 6953310, 10429965, 20859930]

約数ペア:

[(1, 20859930), (2, 10429965), (3, 6953310), (5, 4171986), (6, 3476655), (7, 2979990), (9, 2317770), (10, 2085993), (13, 1604610), (14, 1489995), (15, 1390662), (18, 1158885), (21, 993330), (26, 802305), (27, 772590), (30, 695331), (35, 595998), (39, 534870), (42, 496665), (45, 463554), (54, 386295), (63, 331110), (65, 320922), (70, 297999), (78, 267435), (81, 257530), (90, 231777), (91, 229230), (105, 198666), (117, 178290), (126, 165555), (130, 160461), (135, 154518), (162, 128765), (182, 114615), (189, 110370), (195, 106974), (210, 99333), (234, 89145), (270, 77259), (273, 76410), (283, 73710), (315, 66222), (351, 59430), (378, 55185), (390, 53487), (405, 51506), (455, 45846), (546, 38205), (566, 36855), (567, 36790), (585, 35658), (630, 33111), (702, 29715), (810, 25753), (819, 25470), (849, 24570), (910, 22923), (945, 22074), (1053, 19810), (1134, 18395), (1170, 17829), (1365, 15282), (1415, 14742), (1638, 12735), (1698, 12285), (1755, 11886), (1890, 11037), (1981, 10530), (2106, 9905), (2457, 8490), (2547, 8190), (2730, 7641), (2830, 7371), (2835, 7358), (3510, 5943), (3679, 5670), (3962, 5265), (4095, 5094), (4245, 4914)]