18945850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:93

約数の個数: 144

約数和(自身を含む): 48345120

約数和(自身を除く): 29399270

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 25, 35, 37, 38, 49, 50, 55, 70, 74, 77, 95, 98, 110, 133, 154, 175, 185, 190, 209, 245, 259, 266, 275, 350, 370, 385, 407, 418, 475, 490, 518, 539, 550, 665, 703, 770, 814, 925, 931, 950, 1045, 1078, 1225, 1295, 1330, 1406, 1463, 1813, 1850, 1862, 1925, 2035, 2090, 2450, 2590, 2695, 2849, 2926, 3325, 3515, 3626, 3850, 4070, 4655, 4921, 5225, 5390, 5698, 6475, 6650, 7030, 7315, 7733, 9065, 9310, 9842, 10175, 10241, 10450, 12950, 13475, 14245, 14630, 15466, 17575, 18130, 19943, 20350, 20482, 23275, 24605, 26950, 28490, 34447, 35150, 36575, 38665, 39886, 45325, 46550, 49210, 51205, 54131, 68894, 71225, 73150, 77330, 90650, 99715, 102410, 108262, 123025, 142450, 172235, 193325, 199430, 246050, 256025, 270655, 344470, 378917, 386650, 498575, 512050, 541310, 757834, 861175, 997150, 1353275, 1722350, 1894585, 2706550, 3789170, 9472925, 18945850]

約数ペア:

[(1, 18945850), (2, 9472925), (5, 3789170), (7, 2706550), (10, 1894585), (11, 1722350), (14, 1353275), (19, 997150), (22, 861175), (25, 757834), (35, 541310), (37, 512050), (38, 498575), (49, 386650), (50, 378917), (55, 344470), (70, 270655), (74, 256025), (77, 246050), (95, 199430), (98, 193325), (110, 172235), (133, 142450), (154, 123025), (175, 108262), (185, 102410), (190, 99715), (209, 90650), (245, 77330), (259, 73150), (266, 71225), (275, 68894), (350, 54131), (370, 51205), (385, 49210), (407, 46550), (418, 45325), (475, 39886), (490, 38665), (518, 36575), (539, 35150), (550, 34447), (665, 28490), (703, 26950), (770, 24605), (814, 23275), (925, 20482), (931, 20350), (950, 19943), (1045, 18130), (1078, 17575), (1225, 15466), (1295, 14630), (1330, 14245), (1406, 13475), (1463, 12950), (1813, 10450), (1850, 10241), (1862, 10175), (1925, 9842), (2035, 9310), (2090, 9065), (2450, 7733), (2590, 7315), (2695, 7030), (2849, 6650), (2926, 6475), (3325, 5698), (3515, 5390), (3626, 5225), (3850, 4921), (4070, 4655)]