18388260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 44353692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 251, 330, 333, 370, 396, 407, 444, 495, 502, 555, 660, 666, 740, 753, 814, 990, 1004, 1110, 1221, 1255, 1332, 1506, 1628, 1665, 1980, 2035, 2220, 2259, 2442, 2510, 2761, 3012, 3330, 3663, 3765, 4070, 4518, 4884, 5020, 5522, 6105, 6660, 7326, 7530, 8140, 8283, 9036, 9287, 11044, 11295, 12210, 13805, 14652, 15060, 16566, 18315, 18574, 22590, 24420, 24849, 27610, 27861, 33132, 36630, 37148, 41415, 45180, 46435, 49698, 55220, 55722, 73260, 82830, 83583, 92870, 99396, 102157, 111444, 124245, 139305, 165660, 167166, 185740, 204314, 248490, 278610, 306471, 334332, 408628, 417915, 496980, 510785, 557220, 612942, 835830, 919413, 1021570, 1225884, 1532355, 1671660, 1838826, 2043140, 3064710, 3677652, 4597065, 6129420, 9194130, 18388260]

約数ペア:

[(1, 18388260), (2, 9194130), (3, 6129420), (4, 4597065), (5, 3677652), (6, 3064710), (9, 2043140), (10, 1838826), (11, 1671660), (12, 1532355), (15, 1225884), (18, 1021570), (20, 919413), (22, 835830), (30, 612942), (33, 557220), (36, 510785), (37, 496980), (44, 417915), (45, 408628), (55, 334332), (60, 306471), (66, 278610), (74, 248490), (90, 204314), (99, 185740), (110, 167166), (111, 165660), (132, 139305), (148, 124245), (165, 111444), (180, 102157), (185, 99396), (198, 92870), (220, 83583), (222, 82830), (251, 73260), (330, 55722), (333, 55220), (370, 49698), (396, 46435), (407, 45180), (444, 41415), (495, 37148), (502, 36630), (555, 33132), (660, 27861), (666, 27610), (740, 24849), (753, 24420), (814, 22590), (990, 18574), (1004, 18315), (1110, 16566), (1221, 15060), (1255, 14652), (1332, 13805), (1506, 12210), (1628, 11295), (1665, 11044), (1980, 9287), (2035, 9036), (2220, 8283), (2259, 8140), (2442, 7530), (2510, 7326), (2761, 6660), (3012, 6105), (3330, 5522), (3663, 5020), (3765, 4884), (4070, 4518)]