20122701716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{17573}}^1$

素因数の和:17689

約数の個数: 72

約数和(自身を含む): 40683036744

約数和(自身を除く): 20560335028

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 361, 494, 722, 793, 988, 1159, 1444, 1586, 2318, 3172, 4636, 4693, 9386, 15067, 17573, 18772, 22021, 30134, 35146, 44042, 60268, 70292, 88084, 228449, 286273, 333887, 456898, 572546, 667774, 913796, 1071953, 1145092, 1335548, 2143906, 4287812, 4340531, 6343853, 8681062, 12687706, 13935389, 17362124, 20367107, 25375412, 27870778, 40734214, 55741556, 81468428, 82470089, 164940178, 264772391, 329880356, 386975033, 529544782, 773950066, 1059089564, 1547900132, 5030675429, 10061350858, 20122701716]

約数ペア:

[(1, 20122701716), (2, 10061350858), (4, 5030675429), (13, 1547900132), (19, 1059089564), (26, 773950066), (38, 529544782), (52, 386975033), (61, 329880356), (76, 264772391), (122, 164940178), (244, 82470089), (247, 81468428), (361, 55741556), (494, 40734214), (722, 27870778), (793, 25375412), (988, 20367107), (1159, 17362124), (1444, 13935389), (1586, 12687706), (2318, 8681062), (3172, 6343853), (4636, 4340531), (4693, 4287812), (9386, 2143906), (15067, 1335548), (17573, 1145092), (18772, 1071953), (22021, 913796), (30134, 667774), (35146, 572546), (44042, 456898), (60268, 333887), (70292, 286273), (88084, 228449)]