19982624

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 41481720

約数和(自身を除く): 21499096

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 116, 122, 232, 244, 353, 464, 488, 706, 928, 976, 1412, 1769, 1952, 2824, 3538, 5648, 7076, 10237, 11296, 14152, 20474, 21533, 28304, 40948, 43066, 56608, 81896, 86132, 163792, 172264, 327584, 344528, 624457, 689056, 1248914, 2497828, 4995656, 9991312, 19982624]

約数ペア:

[(1, 19982624), (2, 9991312), (4, 4995656), (8, 2497828), (16, 1248914), (29, 689056), (32, 624457), (58, 344528), (61, 327584), (116, 172264), (122, 163792), (232, 86132), (244, 81896), (353, 56608), (464, 43066), (488, 40948), (706, 28304), (928, 21533), (976, 20474), (1412, 14152), (1769, 11296), (1952, 10237), (2824, 7076), (3538, 5648)]