649424560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:363

約数の個数: 120

約数和(自身を含む): 1615744800

約数和(自身を除く): 966320240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 113, 152, 190, 199, 226, 304, 361, 380, 398, 452, 565, 722, 760, 796, 904, 995, 1130, 1444, 1520, 1592, 1805, 1808, 1990, 2147, 2260, 2888, 3184, 3610, 3781, 3980, 4294, 4520, 5776, 7220, 7562, 7960, 8588, 9040, 10735, 14440, 15124, 15920, 17176, 18905, 21470, 22487, 28880, 30248, 34352, 37810, 40793, 42940, 44974, 60496, 71839, 75620, 81586, 85880, 89948, 112435, 143678, 151240, 163172, 171760, 179896, 203965, 224870, 287356, 302480, 326344, 359195, 359792, 407930, 427253, 449740, 574712, 652688, 718390, 815860, 854506, 899480, 1149424, 1436780, 1631720, 1709012, 1798960, 2136265, 2873560, 3263440, 3418024, 4272530, 5747120, 6836048, 8117807, 8545060, 16235614, 17090120, 32471228, 34180240, 40589035, 64942456, 81178070, 129884912, 162356140, 324712280, 649424560]

約数ペア:

[(1, 649424560), (2, 324712280), (4, 162356140), (5, 129884912), (8, 81178070), (10, 64942456), (16, 40589035), (19, 34180240), (20, 32471228), (38, 17090120), (40, 16235614), (76, 8545060), (80, 8117807), (95, 6836048), (113, 5747120), (152, 4272530), (190, 3418024), (199, 3263440), (226, 2873560), (304, 2136265), (361, 1798960), (380, 1709012), (398, 1631720), (452, 1436780), (565, 1149424), (722, 899480), (760, 854506), (796, 815860), (904, 718390), (995, 652688), (1130, 574712), (1444, 449740), (1520, 427253), (1592, 407930), (1805, 359792), (1808, 359195), (1990, 326344), (2147, 302480), (2260, 287356), (2888, 224870), (3184, 203965), (3610, 179896), (3781, 171760), (3980, 163172), (4294, 151240), (4520, 143678), (5776, 112435), (7220, 89948), (7562, 85880), (7960, 81586), (8588, 75620), (9040, 71839), (10735, 60496), (14440, 44974), (15124, 42940), (15920, 40793), (17176, 37810), (18905, 34352), (21470, 30248), (22487, 28880)]