18801477880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1\times {\mathrm{811}}^1$

素因数の和:1181

約数の個数: 128

約数和(自身を含む): 44788101120

約数和(自身を除く): 25986623240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 113, 115, 184, 223, 226, 230, 446, 452, 460, 565, 811, 892, 904, 920, 1115, 1130, 1622, 1784, 2230, 2260, 2599, 3244, 4055, 4460, 4520, 5129, 5198, 6488, 8110, 8920, 10258, 10396, 12995, 16220, 18653, 20516, 20792, 25199, 25645, 25990, 32440, 37306, 41032, 50398, 51290, 51980, 74612, 91643, 93265, 100796, 102580, 103960, 125995, 149224, 180853, 183286, 186530, 201592, 205160, 251990, 361706, 366572, 373060, 458215, 503980, 579577, 723412, 733144, 746120, 904265, 916430, 1007960, 1159154, 1446824, 1808530, 1832860, 2107789, 2318308, 2897885, 3617060, 3665720, 4159619, 4215578, 4636616, 5795770, 7234120, 8319238, 8431156, 10538945, 11591540, 16638476, 16862312, 20436389, 20798095, 21077890, 23183080, 33276952, 40872778, 41596190, 42155780, 81745556, 83192380, 84311560, 102181945, 163491112, 166384760, 204363890, 408727780, 470036947, 817455560, 940073894, 1880147788, 2350184735, 3760295576, 4700369470, 9400738940, 18801477880]

約数ペア:

[(1, 18801477880), (2, 9400738940), (4, 4700369470), (5, 3760295576), (8, 2350184735), (10, 1880147788), (20, 940073894), (23, 817455560), (40, 470036947), (46, 408727780), (92, 204363890), (113, 166384760), (115, 163491112), (184, 102181945), (223, 84311560), (226, 83192380), (230, 81745556), (446, 42155780), (452, 41596190), (460, 40872778), (565, 33276952), (811, 23183080), (892, 21077890), (904, 20798095), (920, 20436389), (1115, 16862312), (1130, 16638476), (1622, 11591540), (1784, 10538945), (2230, 8431156), (2260, 8319238), (2599, 7234120), (3244, 5795770), (4055, 4636616), (4460, 4215578), (4520, 4159619), (5129, 3665720), (5198, 3617060), (6488, 2897885), (8110, 2318308), (8920, 2107789), (10258, 1832860), (10396, 1808530), (12995, 1446824), (16220, 1159154), (18653, 1007960), (20516, 916430), (20792, 904265), (25199, 746120), (25645, 733144), (25990, 723412), (32440, 579577), (37306, 503980), (41032, 458215), (50398, 373060), (51290, 366572), (51980, 361706), (74612, 251990), (91643, 205160), (93265, 201592), (100796, 186530), (102580, 183286), (103960, 180853), (125995, 149224)]