21441980920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{6277}}^1$

素因数の和:6437

約数の個数: 128

約数和(自身を含む): 52072243200

約数和(自身を除く): 30630262280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 79, 92, 94, 115, 158, 184, 188, 230, 235, 316, 376, 395, 460, 470, 632, 790, 920, 940, 1081, 1580, 1817, 1880, 2162, 3160, 3634, 3713, 4324, 5405, 6277, 7268, 7426, 8648, 9085, 10810, 12554, 14536, 14852, 18170, 18565, 21620, 25108, 29704, 31385, 36340, 37130, 43240, 50216, 62770, 72680, 74260, 85399, 125540, 144371, 148520, 170798, 251080, 288742, 295019, 341596, 426995, 495883, 577484, 590038, 683192, 721855, 853990, 991766, 1154968, 1180076, 1443710, 1475095, 1707980, 1983532, 2360152, 2479415, 2887420, 2950190, 3415960, 3967064, 4958830, 5774840, 5900380, 6785437, 9917660, 11405309, 11800760, 13570874, 19835320, 22810618, 23306501, 27141748, 33927185, 45621236, 46613002, 54283496, 57026545, 67854370, 91242472, 93226004, 114053090, 116532505, 135708740, 186452008, 228106180, 233065010, 271417480, 456212360, 466130020, 536049523, 932260040, 1072099046, 2144198092, 2680247615, 4288396184, 5360495230, 10720990460, 21441980920]

約数ペア:

[(1, 21441980920), (2, 10720990460), (4, 5360495230), (5, 4288396184), (8, 2680247615), (10, 2144198092), (20, 1072099046), (23, 932260040), (40, 536049523), (46, 466130020), (47, 456212360), (79, 271417480), (92, 233065010), (94, 228106180), (115, 186452008), (158, 135708740), (184, 116532505), (188, 114053090), (230, 93226004), (235, 91242472), (316, 67854370), (376, 57026545), (395, 54283496), (460, 46613002), (470, 45621236), (632, 33927185), (790, 27141748), (920, 23306501), (940, 22810618), (1081, 19835320), (1580, 13570874), (1817, 11800760), (1880, 11405309), (2162, 9917660), (3160, 6785437), (3634, 5900380), (3713, 5774840), (4324, 4958830), (5405, 3967064), (6277, 3415960), (7268, 2950190), (7426, 2887420), (8648, 2479415), (9085, 2360152), (10810, 1983532), (12554, 1707980), (14536, 1475095), (14852, 1443710), (18170, 1180076), (18565, 1154968), (21620, 991766), (25108, 853990), (29704, 721855), (31385, 683192), (36340, 590038), (37130, 577484), (43240, 495883), (50216, 426995), (62770, 341596), (72680, 295019), (74260, 288742), (85399, 251080), (125540, 170798), (144371, 148520)]