139915120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:602

約数の個数: 80

約数和(自身を含む): 337344480

約数和(自身を除く): 197429360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 89, 172, 178, 215, 344, 356, 430, 445, 457, 688, 712, 860, 890, 914, 1424, 1720, 1780, 1828, 2285, 3440, 3560, 3656, 3827, 4570, 7120, 7312, 7654, 9140, 15308, 18280, 19135, 19651, 30616, 36560, 38270, 39302, 40673, 61232, 76540, 78604, 81346, 98255, 153080, 157208, 162692, 196510, 203365, 306160, 314416, 325384, 393020, 406730, 650768, 786040, 813460, 1572080, 1626920, 1748939, 3253840, 3497878, 6995756, 8744695, 13991512, 17489390, 27983024, 34978780, 69957560, 139915120]

約数ペア:

[(1, 139915120), (2, 69957560), (4, 34978780), (5, 27983024), (8, 17489390), (10, 13991512), (16, 8744695), (20, 6995756), (40, 3497878), (43, 3253840), (80, 1748939), (86, 1626920), (89, 1572080), (172, 813460), (178, 786040), (215, 650768), (344, 406730), (356, 393020), (430, 325384), (445, 314416), (457, 306160), (688, 203365), (712, 196510), (860, 162692), (890, 157208), (914, 153080), (1424, 98255), (1720, 81346), (1780, 78604), (1828, 76540), (2285, 61232), (3440, 40673), (3560, 39302), (3656, 38270), (3827, 36560), (4570, 30616), (7120, 19651), (7312, 19135), (7654, 18280), (9140, 15308)]