199870892

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 398380752

約数和(自身を除く): 198509860

約数列:

[1, 2, 4, 13, 26, 37, 52, 61, 74, 122, 131, 148, 169, 244, 262, 338, 481, 524, 676, 793, 962, 1586, 1703, 1924, 2257, 3172, 3406, 4514, 4847, 6253, 6812, 7991, 9028, 9694, 10309, 12506, 15982, 19388, 20618, 22139, 25012, 29341, 31964, 41236, 44278, 58682, 63011, 88556, 103883, 117364, 126022, 207766, 252044, 295667, 381433, 415532, 591334, 762866, 819143, 1182668, 1350479, 1525732, 1638286, 2700958, 3276572, 3843671, 5401916, 7687342, 15374684, 49967723, 99935446, 199870892]

約数ペア:

[(1, 199870892), (2, 99935446), (4, 49967723), (13, 15374684), (26, 7687342), (37, 5401916), (52, 3843671), (61, 3276572), (74, 2700958), (122, 1638286), (131, 1525732), (148, 1350479), (169, 1182668), (244, 819143), (262, 762866), (338, 591334), (481, 415532), (524, 381433), (676, 295667), (793, 252044), (962, 207766), (1586, 126022), (1703, 117364), (1924, 103883), (2257, 88556), (3172, 63011), (3406, 58682), (4514, 44278), (4847, 41236), (6253, 31964), (6812, 29341), (7991, 25012), (9028, 22139), (9694, 20618), (10309, 19388), (12506, 15982)]