2161233280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2124

約数の個数: 128

約数和(自身を含む): 5502492000

約数和(自身を除く): 3341258720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 89, 95, 128, 152, 160, 178, 190, 304, 320, 356, 380, 445, 608, 640, 712, 760, 890, 1216, 1424, 1520, 1691, 1780, 1997, 2432, 2848, 3040, 3382, 3560, 3994, 5696, 6080, 6764, 7120, 7988, 8455, 9985, 11392, 12160, 13528, 14240, 15976, 16910, 19970, 27056, 28480, 31952, 33820, 37943, 39940, 54112, 56960, 63904, 67640, 75886, 79880, 108224, 127808, 135280, 151772, 159760, 177733, 189715, 216448, 255616, 270560, 303544, 319520, 355466, 379430, 541120, 607088, 639040, 710932, 758860, 888665, 1082240, 1214176, 1278080, 1421864, 1517720, 1777330, 2428352, 2843728, 3035440, 3376927, 3554660, 4856704, 5687456, 6070880, 6753854, 7109320, 11374912, 12141760, 13507708, 14218640, 16884635, 22749824, 24283520, 27015416, 28437280, 33769270, 54030832, 56874560, 67538540, 108061664, 113749120, 135077080, 216123328, 270154160, 432246656, 540308320, 1080616640, 2161233280]

約数ペア:

[(1, 2161233280), (2, 1080616640), (4, 540308320), (5, 432246656), (8, 270154160), (10, 216123328), (16, 135077080), (19, 113749120), (20, 108061664), (32, 67538540), (38, 56874560), (40, 54030832), (64, 33769270), (76, 28437280), (80, 27015416), (89, 24283520), (95, 22749824), (128, 16884635), (152, 14218640), (160, 13507708), (178, 12141760), (190, 11374912), (304, 7109320), (320, 6753854), (356, 6070880), (380, 5687456), (445, 4856704), (608, 3554660), (640, 3376927), (712, 3035440), (760, 2843728), (890, 2428352), (1216, 1777330), (1424, 1517720), (1520, 1421864), (1691, 1278080), (1780, 1214176), (1997, 1082240), (2432, 888665), (2848, 758860), (3040, 710932), (3382, 639040), (3560, 607088), (3994, 541120), (5696, 379430), (6080, 355466), (6764, 319520), (7120, 303544), (7988, 270560), (8455, 255616), (9985, 216448), (11392, 189715), (12160, 177733), (13528, 159760), (14240, 151772), (15976, 135280), (16910, 127808), (19970, 108224), (27056, 79880), (28480, 75886), (31952, 67640), (33820, 63904), (37943, 56960), (39940, 54112)]