15721873240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{499}}^1$

素因数の和:869

約数の個数: 128

約数和(自身を含む): 37114200000

約数和(自身を除く): 21392326760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 157, 173, 232, 290, 314, 346, 499, 580, 628, 692, 785, 865, 998, 1160, 1256, 1384, 1570, 1730, 1996, 2495, 3140, 3460, 3992, 4553, 4990, 5017, 6280, 6920, 9106, 9980, 10034, 14471, 18212, 19960, 20068, 22765, 25085, 27161, 28942, 36424, 40136, 45530, 50170, 54322, 57884, 72355, 78343, 86327, 91060, 100340, 108644, 115768, 135805, 144710, 156686, 172654, 182120, 200680, 217288, 271610, 289420, 313372, 345308, 391715, 431635, 543220, 578840, 626744, 690616, 783430, 787669, 863270, 1086440, 1566860, 1575338, 1726540, 2271947, 2503483, 3133720, 3150676, 3453080, 3938345, 4543894, 5006966, 6301352, 7876690, 9087788, 10013932, 11359735, 12517415, 13553339, 15753380, 18175576, 20027864, 22719470, 25034830, 27106678, 31506760, 45438940, 50069660, 54213356, 67766695, 90877880, 100139320, 108426712, 135533390, 271066780, 393046831, 542133560, 786093662, 1572187324, 1965234155, 3144374648, 3930468310, 7860936620, 15721873240]

約数ペア:

[(1, 15721873240), (2, 7860936620), (4, 3930468310), (5, 3144374648), (8, 1965234155), (10, 1572187324), (20, 786093662), (29, 542133560), (40, 393046831), (58, 271066780), (116, 135533390), (145, 108426712), (157, 100139320), (173, 90877880), (232, 67766695), (290, 54213356), (314, 50069660), (346, 45438940), (499, 31506760), (580, 27106678), (628, 25034830), (692, 22719470), (785, 20027864), (865, 18175576), (998, 15753380), (1160, 13553339), (1256, 12517415), (1384, 11359735), (1570, 10013932), (1730, 9087788), (1996, 7876690), (2495, 6301352), (3140, 5006966), (3460, 4543894), (3992, 3938345), (4553, 3453080), (4990, 3150676), (5017, 3133720), (6280, 2503483), (6920, 2271947), (9106, 1726540), (9980, 1575338), (10034, 1566860), (14471, 1086440), (18212, 863270), (19960, 787669), (20068, 783430), (22765, 690616), (25085, 626744), (27161, 578840), (28942, 543220), (36424, 431635), (40136, 391715), (45530, 345308), (50170, 313372), (54322, 289420), (57884, 271610), (72355, 217288), (78343, 200680), (86327, 182120), (91060, 172654), (100340, 156686), (108644, 144710), (115768, 135805)]