343194680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 787320000

約数和(自身を除く): 444125320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 149, 178, 298, 356, 445, 596, 647, 712, 745, 890, 1192, 1294, 1490, 1780, 2588, 2980, 3235, 3560, 5176, 5960, 6470, 12940, 13261, 25880, 26522, 53044, 57583, 66305, 96403, 106088, 115166, 132610, 192806, 230332, 265220, 287915, 385612, 460664, 482015, 530440, 575830, 771224, 964030, 1151660, 1928060, 2303320, 3856120, 8579867, 17159734, 34319468, 42899335, 68638936, 85798670, 171597340, 343194680]

約数ペア:

[(1, 343194680), (2, 171597340), (4, 85798670), (5, 68638936), (8, 42899335), (10, 34319468), (20, 17159734), (40, 8579867), (89, 3856120), (149, 2303320), (178, 1928060), (298, 1151660), (356, 964030), (445, 771224), (596, 575830), (647, 530440), (712, 482015), (745, 460664), (890, 385612), (1192, 287915), (1294, 265220), (1490, 230332), (1780, 192806), (2588, 132610), (2980, 115166), (3235, 106088), (3560, 96403), (5176, 66305), (5960, 57583), (6470, 53044), (12940, 26522), (13261, 25880)]