19758720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:314

約数の個数: 128

約数和(自身を含む): 64774080

約数和(自身を除く): 45015360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 251, 320, 328, 384, 410, 480, 492, 502, 615, 640, 656, 753, 820, 960, 984, 1004, 1230, 1255, 1312, 1506, 1640, 1920, 1968, 2008, 2460, 2510, 2624, 3012, 3280, 3765, 3936, 4016, 4920, 5020, 5248, 6024, 6560, 7530, 7872, 8032, 9840, 10040, 10291, 12048, 13120, 15060, 15744, 16064, 19680, 20080, 20582, 24096, 26240, 30120, 30873, 32128, 39360, 40160, 41164, 48192, 51455, 60240, 61746, 78720, 80320, 82328, 96384, 102910, 120480, 123492, 154365, 160640, 164656, 205820, 240960, 246984, 308730, 329312, 411640, 481920, 493968, 617460, 658624, 823280, 987936, 1234920, 1317248, 1646560, 1975872, 2469840, 3293120, 3951744, 4939680, 6586240, 9879360, 19758720]

約数ペア:

[(1, 19758720), (2, 9879360), (3, 6586240), (4, 4939680), (5, 3951744), (6, 3293120), (8, 2469840), (10, 1975872), (12, 1646560), (15, 1317248), (16, 1234920), (20, 987936), (24, 823280), (30, 658624), (32, 617460), (40, 493968), (41, 481920), (48, 411640), (60, 329312), (64, 308730), (80, 246984), (82, 240960), (96, 205820), (120, 164656), (123, 160640), (128, 154365), (160, 123492), (164, 120480), (192, 102910), (205, 96384), (240, 82328), (246, 80320), (251, 78720), (320, 61746), (328, 60240), (384, 51455), (410, 48192), (480, 41164), (492, 40160), (502, 39360), (615, 32128), (640, 30873), (656, 30120), (753, 26240), (820, 24096), (960, 20582), (984, 20080), (1004, 19680), (1230, 16064), (1255, 15744), (1312, 15060), (1506, 13120), (1640, 12048), (1920, 10291), (1968, 10040), (2008, 9840), (2460, 8032), (2510, 7872), (2624, 7530), (3012, 6560), (3280, 6024), (3765, 5248), (3936, 5020), (4016, 4920)]