19711360

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1621}}^1$

素因数の和:1659

約数の個数: 64

約数和(自身を含む): 49633200

約数和(自身を除く): 29921840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1621, 2432, 3040, 3242, 6080, 6484, 8105, 12160, 12968, 16210, 25936, 30799, 32420, 51872, 61598, 64840, 103744, 123196, 129680, 153995, 207488, 246392, 259360, 307990, 492784, 518720, 615980, 985568, 1037440, 1231960, 1971136, 2463920, 3942272, 4927840, 9855680, 19711360]

約数ペア:

[(1, 19711360), (2, 9855680), (4, 4927840), (5, 3942272), (8, 2463920), (10, 1971136), (16, 1231960), (19, 1037440), (20, 985568), (32, 615980), (38, 518720), (40, 492784), (64, 307990), (76, 259360), (80, 246392), (95, 207488), (128, 153995), (152, 129680), (160, 123196), (190, 103744), (304, 64840), (320, 61598), (380, 51872), (608, 32420), (640, 30799), (760, 25936), (1216, 16210), (1520, 12968), (1621, 12160), (2432, 8105), (3040, 6484), (3242, 6080)]