18985736

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:92

約数の個数: 128

約数和(自身を含む): 49248000

約数和(自身を除く): 30262264

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 37, 44, 49, 56, 68, 74, 77, 88, 98, 119, 136, 148, 154, 187, 196, 238, 259, 296, 308, 343, 374, 392, 407, 476, 518, 539, 616, 629, 686, 748, 814, 833, 952, 1036, 1078, 1258, 1309, 1372, 1496, 1628, 1666, 1813, 2072, 2156, 2516, 2618, 2744, 2849, 3256, 3332, 3626, 3773, 4312, 4403, 5032, 5236, 5698, 5831, 6664, 6919, 7252, 7546, 8806, 9163, 10472, 11396, 11662, 12691, 13838, 14504, 15092, 17612, 18326, 19943, 22792, 23324, 25382, 27676, 30184, 30821, 35224, 36652, 39886, 46648, 48433, 50764, 55352, 61642, 64141, 73304, 79772, 96866, 101528, 123284, 128282, 139601, 159544, 193732, 215747, 246568, 256564, 279202, 339031, 387464, 431494, 513128, 558404, 678062, 862988, 1116808, 1356124, 1725976, 2373217, 2712248, 4746434, 9492868, 18985736]

約数ペア:

[(1, 18985736), (2, 9492868), (4, 4746434), (7, 2712248), (8, 2373217), (11, 1725976), (14, 1356124), (17, 1116808), (22, 862988), (28, 678062), (34, 558404), (37, 513128), (44, 431494), (49, 387464), (56, 339031), (68, 279202), (74, 256564), (77, 246568), (88, 215747), (98, 193732), (119, 159544), (136, 139601), (148, 128282), (154, 123284), (187, 101528), (196, 96866), (238, 79772), (259, 73304), (296, 64141), (308, 61642), (343, 55352), (374, 50764), (392, 48433), (407, 46648), (476, 39886), (518, 36652), (539, 35224), (616, 30821), (629, 30184), (686, 27676), (748, 25382), (814, 23324), (833, 22792), (952, 19943), (1036, 18326), (1078, 17612), (1258, 15092), (1309, 14504), (1372, 13838), (1496, 12691), (1628, 11662), (1666, 11396), (1813, 10472), (2072, 9163), (2156, 8806), (2516, 7546), (2618, 7252), (2744, 6919), (2849, 6664), (3256, 5831), (3332, 5698), (3626, 5236), (3773, 5032), (4312, 4403)]