281360960

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:412

約数の個数: 112

約数和(自身を含む): 700503552

約数和(自身を除く): 419142592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 113, 124, 155, 160, 226, 248, 251, 310, 320, 452, 496, 502, 565, 620, 904, 992, 1004, 1130, 1240, 1255, 1808, 1984, 2008, 2260, 2480, 2510, 3503, 3616, 4016, 4520, 4960, 5020, 7006, 7232, 7781, 8032, 9040, 9920, 10040, 14012, 15562, 16064, 17515, 18080, 20080, 28024, 28363, 31124, 35030, 36160, 38905, 40160, 56048, 56726, 62248, 70060, 77810, 80320, 112096, 113452, 124496, 140120, 141815, 155620, 224192, 226904, 248992, 280240, 283630, 311240, 453808, 497984, 560480, 567260, 622480, 879253, 907616, 1120960, 1134520, 1244960, 1758506, 1815232, 2269040, 2489920, 3517012, 4396265, 4538080, 7034024, 8792530, 9076160, 14068048, 17585060, 28136096, 35170120, 56272192, 70340240, 140680480, 281360960]

約数ペア:

[(1, 281360960), (2, 140680480), (4, 70340240), (5, 56272192), (8, 35170120), (10, 28136096), (16, 17585060), (20, 14068048), (31, 9076160), (32, 8792530), (40, 7034024), (62, 4538080), (64, 4396265), (80, 3517012), (113, 2489920), (124, 2269040), (155, 1815232), (160, 1758506), (226, 1244960), (248, 1134520), (251, 1120960), (310, 907616), (320, 879253), (452, 622480), (496, 567260), (502, 560480), (565, 497984), (620, 453808), (904, 311240), (992, 283630), (1004, 280240), (1130, 248992), (1240, 226904), (1255, 224192), (1808, 155620), (1984, 141815), (2008, 140120), (2260, 124496), (2480, 113452), (2510, 112096), (3503, 80320), (3616, 77810), (4016, 70060), (4520, 62248), (4960, 56726), (5020, 56048), (7006, 40160), (7232, 38905), (7781, 36160), (8032, 35030), (9040, 31124), (9920, 28363), (10040, 28024), (14012, 20080), (15562, 18080), (16064, 17515)]