20970480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:199

約数の個数: 160

約数和(自身を含む): 70709760

約数和(自身を除く): 49739280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 29, 30, 40, 46, 48, 58, 60, 69, 80, 87, 92, 115, 116, 120, 131, 138, 145, 174, 184, 230, 232, 240, 262, 276, 290, 345, 348, 368, 393, 435, 460, 464, 524, 552, 580, 655, 667, 690, 696, 786, 870, 920, 1048, 1104, 1160, 1310, 1334, 1380, 1392, 1572, 1740, 1840, 1965, 2001, 2096, 2320, 2620, 2668, 2760, 3013, 3144, 3335, 3480, 3799, 3930, 4002, 5240, 5336, 5520, 6026, 6288, 6670, 6960, 7598, 7860, 8004, 9039, 10005, 10480, 10672, 11397, 12052, 13340, 15065, 15196, 15720, 16008, 18078, 18995, 20010, 22794, 24104, 26680, 30130, 30392, 31440, 32016, 36156, 37990, 40020, 45195, 45588, 48208, 53360, 56985, 60260, 60784, 72312, 75980, 80040, 87377, 90390, 91176, 113970, 120520, 144624, 151960, 160080, 174754, 180780, 182352, 227940, 241040, 262131, 303920, 349508, 361560, 436885, 455880, 524262, 699016, 723120, 873770, 911760, 1048524, 1310655, 1398032, 1747540, 2097048, 2621310, 3495080, 4194096, 5242620, 6990160, 10485240, 20970480]

約数ペア:

[(1, 20970480), (2, 10485240), (3, 6990160), (4, 5242620), (5, 4194096), (6, 3495080), (8, 2621310), (10, 2097048), (12, 1747540), (15, 1398032), (16, 1310655), (20, 1048524), (23, 911760), (24, 873770), (29, 723120), (30, 699016), (40, 524262), (46, 455880), (48, 436885), (58, 361560), (60, 349508), (69, 303920), (80, 262131), (87, 241040), (92, 227940), (115, 182352), (116, 180780), (120, 174754), (131, 160080), (138, 151960), (145, 144624), (174, 120520), (184, 113970), (230, 91176), (232, 90390), (240, 87377), (262, 80040), (276, 75980), (290, 72312), (345, 60784), (348, 60260), (368, 56985), (393, 53360), (435, 48208), (460, 45588), (464, 45195), (524, 40020), (552, 37990), (580, 36156), (655, 32016), (667, 31440), (690, 30392), (696, 30130), (786, 26680), (870, 24104), (920, 22794), (1048, 20010), (1104, 18995), (1160, 18078), (1310, 16008), (1334, 15720), (1380, 15196), (1392, 15065), (1572, 13340), (1740, 12052), (1840, 11397), (1965, 10672), (2001, 10480), (2096, 10005), (2320, 9039), (2620, 8004), (2668, 7860), (2760, 7598), (3013, 6960), (3144, 6670), (3335, 6288), (3480, 6026), (3799, 5520), (3930, 5336), (4002, 5240)]