20199442256

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{31219}}^1$

素因数の和:31396

約数の個数: 80

約数和(自身を含む): 45990806400

約数和(自身を除く): 25791364144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 109, 112, 212, 218, 371, 424, 436, 742, 763, 848, 872, 1484, 1526, 1744, 2968, 3052, 5777, 5936, 6104, 11554, 12208, 23108, 31219, 40439, 46216, 62438, 80878, 92432, 124876, 161756, 218533, 249752, 323512, 437066, 499504, 647024, 874132, 1654607, 1748264, 3309214, 3402871, 3496528, 6618428, 6805742, 11582249, 13236856, 13611484, 23164498, 23820097, 26473712, 27222968, 46328996, 47640194, 54445936, 92657992, 95280388, 180352163, 185315984, 190560776, 360704326, 381121552, 721408652, 1262465141, 1442817304, 2524930282, 2885634608, 5049860564, 10099721128, 20199442256]

約数ペア:

[(1, 20199442256), (2, 10099721128), (4, 5049860564), (7, 2885634608), (8, 2524930282), (14, 1442817304), (16, 1262465141), (28, 721408652), (53, 381121552), (56, 360704326), (106, 190560776), (109, 185315984), (112, 180352163), (212, 95280388), (218, 92657992), (371, 54445936), (424, 47640194), (436, 46328996), (742, 27222968), (763, 26473712), (848, 23820097), (872, 23164498), (1484, 13611484), (1526, 13236856), (1744, 11582249), (2968, 6805742), (3052, 6618428), (5777, 3496528), (5936, 3402871), (6104, 3309214), (11554, 1748264), (12208, 1654607), (23108, 874132), (31219, 647024), (40439, 499504), (46216, 437066), (62438, 323512), (80878, 249752), (92432, 218533), (124876, 161756)]