639211072

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{547}}^1$

素因数の和:640

約数の個数: 84

約数和(自身を含む): 1382176560

約数和(自身を除く): 742965488

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 152, 248, 304, 496, 547, 589, 608, 961, 992, 1094, 1178, 1216, 1922, 1984, 2188, 2356, 3844, 4376, 4712, 7688, 8752, 9424, 10393, 15376, 16957, 17504, 18259, 18848, 20786, 30752, 33914, 35008, 36518, 37696, 41572, 61504, 67828, 73036, 83144, 135656, 146072, 166288, 271312, 292144, 322183, 332576, 525667, 542624, 584288, 644366, 665152, 1051334, 1085248, 1168576, 1288732, 2102668, 2577464, 4205336, 5154928, 8410672, 9987673, 10309856, 16821344, 19975346, 20619712, 33642688, 39950692, 79901384, 159802768, 319605536, 639211072]

約数ペア:

[(1, 639211072), (2, 319605536), (4, 159802768), (8, 79901384), (16, 39950692), (19, 33642688), (31, 20619712), (32, 19975346), (38, 16821344), (62, 10309856), (64, 9987673), (76, 8410672), (124, 5154928), (152, 4205336), (248, 2577464), (304, 2102668), (496, 1288732), (547, 1168576), (589, 1085248), (608, 1051334), (961, 665152), (992, 644366), (1094, 584288), (1178, 542624), (1216, 525667), (1922, 332576), (1984, 322183), (2188, 292144), (2356, 271312), (3844, 166288), (4376, 146072), (4712, 135656), (7688, 83144), (8752, 73036), (9424, 67828), (10393, 61504), (15376, 41572), (16957, 37696), (17504, 36518), (18259, 35008), (18848, 33914), (20786, 30752)]