1989281408

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:446

約数の個数: 128

約数和(自身を含む): 4342947840

約数和(自身を除く): 2353666432

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 64, 71, 92, 124, 128, 142, 184, 248, 284, 307, 368, 496, 568, 614, 713, 736, 992, 1136, 1228, 1426, 1472, 1633, 1984, 2201, 2272, 2456, 2852, 2944, 3266, 3968, 4402, 4544, 4912, 5704, 6532, 7061, 8804, 9088, 9517, 9824, 11408, 13064, 14122, 17608, 19034, 19648, 21797, 22816, 26128, 28244, 35216, 38068, 39296, 43594, 45632, 50623, 52256, 56488, 70432, 76136, 87188, 91264, 101246, 104512, 112976, 140864, 152272, 174376, 202492, 209024, 218891, 225952, 281728, 304544, 348752, 404984, 437782, 451904, 501331, 609088, 675707, 697504, 809968, 875564, 903808, 1002662, 1218176, 1351414, 1395008, 1619936, 1751128, 2005324, 2702828, 2790016, 3239872, 3502256, 4010648, 5405656, 6479744, 7004512, 8021296, 10811312, 14009024, 15541261, 16042592, 21622624, 28018048, 31082522, 32085184, 43245248, 62165044, 64170368, 86490496, 124330088, 248660176, 497320352, 994640704, 1989281408]

約数ペア:

[(1, 1989281408), (2, 994640704), (4, 497320352), (8, 248660176), (16, 124330088), (23, 86490496), (31, 64170368), (32, 62165044), (46, 43245248), (62, 32085184), (64, 31082522), (71, 28018048), (92, 21622624), (124, 16042592), (128, 15541261), (142, 14009024), (184, 10811312), (248, 8021296), (284, 7004512), (307, 6479744), (368, 5405656), (496, 4010648), (568, 3502256), (614, 3239872), (713, 2790016), (736, 2702828), (992, 2005324), (1136, 1751128), (1228, 1619936), (1426, 1395008), (1472, 1351414), (1633, 1218176), (1984, 1002662), (2201, 903808), (2272, 875564), (2456, 809968), (2852, 697504), (2944, 675707), (3266, 609088), (3968, 501331), (4402, 451904), (4544, 437782), (4912, 404984), (5704, 348752), (6532, 304544), (7061, 281728), (8804, 225952), (9088, 218891), (9517, 209024), (9824, 202492), (11408, 174376), (13064, 152272), (14122, 140864), (17608, 112976), (19034, 104512), (19648, 101246), (21797, 91264), (22816, 87188), (26128, 76136), (28244, 70432), (35216, 56488), (38068, 52256), (39296, 50623), (43594, 45632)]