128319664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:890

約数の個数: 80

約数和(自身を含む): 289981440

約数和(自身を除く): 161661776

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 31, 44, 58, 62, 88, 116, 124, 176, 232, 248, 319, 341, 464, 496, 638, 682, 811, 899, 1276, 1364, 1622, 1798, 2552, 2728, 3244, 3596, 5104, 5456, 6488, 7192, 8921, 9889, 12976, 14384, 17842, 19778, 23519, 25141, 35684, 39556, 47038, 50282, 71368, 79112, 94076, 100564, 142736, 158224, 188152, 201128, 258709, 276551, 376304, 402256, 517418, 553102, 729089, 1034836, 1106204, 1458178, 2069672, 2212408, 2916356, 4139344, 4424816, 5832712, 8019979, 11665424, 16039958, 32079916, 64159832, 128319664]

約数ペア:

[(1, 128319664), (2, 64159832), (4, 32079916), (8, 16039958), (11, 11665424), (16, 8019979), (22, 5832712), (29, 4424816), (31, 4139344), (44, 2916356), (58, 2212408), (62, 2069672), (88, 1458178), (116, 1106204), (124, 1034836), (176, 729089), (232, 553102), (248, 517418), (319, 402256), (341, 376304), (464, 276551), (496, 258709), (638, 201128), (682, 188152), (811, 158224), (899, 142736), (1276, 100564), (1364, 94076), (1622, 79112), (1798, 71368), (2552, 50282), (2728, 47038), (3244, 39556), (3596, 35684), (5104, 25141), (5456, 23519), (6488, 19778), (7192, 17842), (8921, 14384), (9889, 12976)]