18938920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:96

約数の個数: 192

約数和(自身を含む): 58988160

約数和(自身を除く): 40049240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 43, 44, 52, 55, 56, 65, 70, 77, 86, 88, 91, 104, 110, 121, 130, 140, 143, 154, 172, 182, 215, 220, 242, 260, 280, 286, 301, 308, 344, 364, 385, 430, 440, 455, 473, 484, 520, 559, 572, 602, 605, 616, 715, 728, 770, 847, 860, 910, 946, 968, 1001, 1118, 1144, 1204, 1210, 1430, 1505, 1540, 1573, 1694, 1720, 1820, 1892, 2002, 2236, 2365, 2408, 2420, 2795, 2860, 3010, 3080, 3146, 3311, 3388, 3640, 3784, 3913, 4004, 4235, 4472, 4730, 4840, 5005, 5203, 5590, 5720, 6020, 6149, 6292, 6622, 6776, 7826, 7865, 8008, 8470, 9460, 10010, 10406, 11011, 11180, 12040, 12298, 12584, 13244, 15652, 15730, 16555, 16940, 18920, 19565, 20020, 20812, 22022, 22360, 24596, 26015, 26488, 30745, 31304, 31460, 33110, 33880, 36421, 39130, 40040, 41624, 43043, 44044, 49192, 52030, 55055, 61490, 62920, 66220, 67639, 72842, 78260, 86086, 88088, 104060, 110110, 122980, 132440, 135278, 145684, 156520, 172172, 182105, 208120, 215215, 220220, 245960, 270556, 291368, 338195, 344344, 364210, 430430, 440440, 473473, 541112, 676390, 728420, 860860, 946946, 1352780, 1456840, 1721720, 1893892, 2367365, 2705560, 3787784, 4734730, 9469460, 18938920]

約数ペア:

[(1, 18938920), (2, 9469460), (4, 4734730), (5, 3787784), (7, 2705560), (8, 2367365), (10, 1893892), (11, 1721720), (13, 1456840), (14, 1352780), (20, 946946), (22, 860860), (26, 728420), (28, 676390), (35, 541112), (40, 473473), (43, 440440), (44, 430430), (52, 364210), (55, 344344), (56, 338195), (65, 291368), (70, 270556), (77, 245960), (86, 220220), (88, 215215), (91, 208120), (104, 182105), (110, 172172), (121, 156520), (130, 145684), (140, 135278), (143, 132440), (154, 122980), (172, 110110), (182, 104060), (215, 88088), (220, 86086), (242, 78260), (260, 72842), (280, 67639), (286, 66220), (301, 62920), (308, 61490), (344, 55055), (364, 52030), (385, 49192), (430, 44044), (440, 43043), (455, 41624), (473, 40040), (484, 39130), (520, 36421), (559, 33880), (572, 33110), (602, 31460), (605, 31304), (616, 30745), (715, 26488), (728, 26015), (770, 24596), (847, 22360), (860, 22022), (910, 20812), (946, 20020), (968, 19565), (1001, 18920), (1118, 16940), (1144, 16555), (1204, 15730), (1210, 15652), (1430, 13244), (1505, 12584), (1540, 12298), (1573, 12040), (1694, 11180), (1720, 11011), (1820, 10406), (1892, 10010), (2002, 9460), (2236, 8470), (2365, 8008), (2408, 7865), (2420, 7826), (2795, 6776), (2860, 6622), (3010, 6292), (3080, 6149), (3146, 6020), (3311, 5720), (3388, 5590), (3640, 5203), (3784, 5005), (3913, 4840), (4004, 4730), (4235, 4472)]