19674880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:849

約数の個数: 72

約数和(自身を含む): 49669200

約数和(自身を除く): 29994320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 809, 1216, 1280, 1520, 1618, 2432, 3040, 3236, 4045, 4864, 6080, 6472, 8090, 12160, 12944, 15371, 16180, 24320, 25888, 30742, 32360, 51776, 61484, 64720, 76855, 103552, 122968, 129440, 153710, 207104, 245936, 258880, 307420, 491872, 517760, 614840, 983744, 1035520, 1229680, 1967488, 2459360, 3934976, 4918720, 9837440, 19674880]

約数ペア:

[(1, 19674880), (2, 9837440), (4, 4918720), (5, 3934976), (8, 2459360), (10, 1967488), (16, 1229680), (19, 1035520), (20, 983744), (32, 614840), (38, 517760), (40, 491872), (64, 307420), (76, 258880), (80, 245936), (95, 207104), (128, 153710), (152, 129440), (160, 122968), (190, 103552), (256, 76855), (304, 64720), (320, 61484), (380, 51776), (608, 32360), (640, 30742), (760, 25888), (809, 24320), (1216, 16180), (1280, 15371), (1520, 12944), (1618, 12160), (2432, 8090), (3040, 6472), (3236, 6080), (4045, 4864)]