215017984

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:122

約数の個数: 120

約数和(自身を含む): 487602720

約数和(自身を除く): 272584736

約数列:

[1, 2, 4, 8, 16, 19, 23, 31, 32, 38, 46, 62, 64, 76, 92, 124, 128, 152, 184, 248, 256, 304, 368, 437, 496, 512, 589, 608, 713, 736, 874, 961, 992, 1178, 1216, 1426, 1472, 1748, 1922, 1984, 2356, 2432, 2852, 2944, 3496, 3844, 3968, 4712, 4864, 5704, 5888, 6992, 7688, 7936, 9424, 9728, 11408, 11776, 13547, 13984, 15376, 15872, 18259, 18848, 22103, 22816, 27094, 27968, 30752, 36518, 37696, 44206, 45632, 54188, 55936, 61504, 73036, 75392, 88412, 91264, 108376, 111872, 123008, 146072, 150784, 176824, 182528, 216752, 223744, 246016, 292144, 301568, 353648, 365056, 419957, 433504, 492032, 584288, 707296, 839914, 867008, 1168576, 1414592, 1679828, 1734016, 2337152, 2829184, 3359656, 3468032, 4674304, 5658368, 6719312, 6936064, 9348608, 11316736, 13438624, 26877248, 53754496, 107508992, 215017984]

約数ペア:

[(1, 215017984), (2, 107508992), (4, 53754496), (8, 26877248), (16, 13438624), (19, 11316736), (23, 9348608), (31, 6936064), (32, 6719312), (38, 5658368), (46, 4674304), (62, 3468032), (64, 3359656), (76, 2829184), (92, 2337152), (124, 1734016), (128, 1679828), (152, 1414592), (184, 1168576), (248, 867008), (256, 839914), (304, 707296), (368, 584288), (437, 492032), (496, 433504), (512, 419957), (589, 365056), (608, 353648), (713, 301568), (736, 292144), (874, 246016), (961, 223744), (992, 216752), (1178, 182528), (1216, 176824), (1426, 150784), (1472, 146072), (1748, 123008), (1922, 111872), (1984, 108376), (2356, 91264), (2432, 88412), (2852, 75392), (2944, 73036), (3496, 61504), (3844, 55936), (3968, 54188), (4712, 45632), (4864, 44206), (5704, 37696), (5888, 36518), (6992, 30752), (7688, 27968), (7936, 27094), (9424, 22816), (9728, 22103), (11408, 18848), (11776, 18259), (13547, 15872), (13984, 15376)]