212803840

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 108

約数和(自身を含む): 529749612

約数和(自身を除く): 316945772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 173, 248, 256, 310, 320, 346, 496, 620, 640, 692, 865, 961, 992, 1240, 1280, 1384, 1730, 1922, 1984, 2480, 2768, 3460, 3844, 3968, 4805, 4960, 5363, 5536, 6920, 7688, 7936, 9610, 9920, 10726, 11072, 13840, 15376, 19220, 19840, 21452, 22144, 26815, 27680, 30752, 38440, 39680, 42904, 44288, 53630, 55360, 61504, 76880, 85808, 107260, 110720, 123008, 153760, 166253, 171616, 214520, 221440, 246016, 307520, 332506, 343232, 429040, 615040, 665012, 686464, 831265, 858080, 1230080, 1330024, 1372928, 1662530, 1716160, 2660048, 3325060, 3432320, 5320096, 6650120, 6864640, 10640192, 13300240, 21280384, 26600480, 42560768, 53200960, 106401920, 212803840]

約数ペア:

[(1, 212803840), (2, 106401920), (4, 53200960), (5, 42560768), (8, 26600480), (10, 21280384), (16, 13300240), (20, 10640192), (31, 6864640), (32, 6650120), (40, 5320096), (62, 3432320), (64, 3325060), (80, 2660048), (124, 1716160), (128, 1662530), (155, 1372928), (160, 1330024), (173, 1230080), (248, 858080), (256, 831265), (310, 686464), (320, 665012), (346, 615040), (496, 429040), (620, 343232), (640, 332506), (692, 307520), (865, 246016), (961, 221440), (992, 214520), (1240, 171616), (1280, 166253), (1384, 153760), (1730, 123008), (1922, 110720), (1984, 107260), (2480, 85808), (2768, 76880), (3460, 61504), (3844, 55360), (3968, 53630), (4805, 44288), (4960, 42904), (5363, 39680), (5536, 38440), (6920, 30752), (7688, 27680), (7936, 26815), (9610, 22144), (9920, 21452), (10726, 19840), (11072, 19220), (13840, 15376)]