21949202680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{3671}}^1$

素因数の和:3869

約数の個数: 128

約数和(自身を含む): 52855649280

約数和(自身を除く): 30906446600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 97, 115, 134, 184, 194, 230, 268, 335, 388, 460, 485, 536, 670, 776, 920, 970, 1340, 1541, 1940, 2231, 2680, 3082, 3671, 3880, 4462, 6164, 6499, 7342, 7705, 8924, 11155, 12328, 12998, 14684, 15410, 17848, 18355, 22310, 25996, 29368, 30820, 32495, 36710, 44620, 51992, 61640, 64990, 73420, 84433, 89240, 129980, 146840, 149477, 168866, 245957, 259960, 298954, 337732, 356087, 422165, 491914, 597908, 675464, 712174, 747385, 844330, 983828, 1195816, 1229785, 1424348, 1494770, 1688660, 1780435, 1967656, 2459570, 2848696, 2989540, 3377320, 3560870, 4919140, 5657011, 5979080, 7121740, 8190001, 9838280, 11314022, 14243480, 16380002, 22628044, 23857829, 28285055, 32760004, 40950005, 45256088, 47715658, 56570110, 65520008, 81900010, 95431316, 113140220, 119289145, 163800020, 190862632, 226280440, 238578290, 327600040, 477156580, 548730067, 954313160, 1097460134, 2194920268, 2743650335, 4389840536, 5487300670, 10974601340, 21949202680]

約数ペア:

[(1, 21949202680), (2, 10974601340), (4, 5487300670), (5, 4389840536), (8, 2743650335), (10, 2194920268), (20, 1097460134), (23, 954313160), (40, 548730067), (46, 477156580), (67, 327600040), (92, 238578290), (97, 226280440), (115, 190862632), (134, 163800020), (184, 119289145), (194, 113140220), (230, 95431316), (268, 81900010), (335, 65520008), (388, 56570110), (460, 47715658), (485, 45256088), (536, 40950005), (670, 32760004), (776, 28285055), (920, 23857829), (970, 22628044), (1340, 16380002), (1541, 14243480), (1940, 11314022), (2231, 9838280), (2680, 8190001), (3082, 7121740), (3671, 5979080), (3880, 5657011), (4462, 4919140), (6164, 3560870), (6499, 3377320), (7342, 2989540), (7705, 2848696), (8924, 2459570), (11155, 1967656), (12328, 1780435), (12998, 1688660), (14684, 1494770), (15410, 1424348), (17848, 1229785), (18355, 1195816), (22310, 983828), (25996, 844330), (29368, 747385), (30820, 712174), (32495, 675464), (36710, 597908), (44620, 491914), (51992, 422165), (61640, 356087), (64990, 337732), (73420, 298954), (84433, 259960), (89240, 245957), (129980, 168866), (146840, 149477)]