31899868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 77672448

約数和(自身を除く): 45772580

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 31, 44, 52, 62, 77, 91, 124, 143, 154, 182, 217, 257, 286, 308, 341, 364, 403, 434, 514, 572, 682, 806, 868, 1001, 1028, 1364, 1612, 1799, 2002, 2387, 2821, 2827, 3341, 3598, 4004, 4433, 4774, 5642, 5654, 6682, 7196, 7967, 8866, 9548, 11284, 11308, 13364, 15934, 17732, 19789, 23387, 31031, 31868, 36751, 39578, 46774, 55769, 62062, 73502, 79156, 87637, 93548, 103571, 111538, 124124, 147004, 175274, 207142, 223076, 257257, 350548, 414284, 514514, 613459, 724997, 1029028, 1139281, 1226918, 1449994, 2278562, 2453836, 2899988, 4557124, 7974967, 15949934, 31899868]

約数ペア:

[(1, 31899868), (2, 15949934), (4, 7974967), (7, 4557124), (11, 2899988), (13, 2453836), (14, 2278562), (22, 1449994), (26, 1226918), (28, 1139281), (31, 1029028), (44, 724997), (52, 613459), (62, 514514), (77, 414284), (91, 350548), (124, 257257), (143, 223076), (154, 207142), (182, 175274), (217, 147004), (257, 124124), (286, 111538), (308, 103571), (341, 93548), (364, 87637), (403, 79156), (434, 73502), (514, 62062), (572, 55769), (682, 46774), (806, 39578), (868, 36751), (1001, 31868), (1028, 31031), (1364, 23387), (1612, 19789), (1799, 17732), (2002, 15934), (2387, 13364), (2821, 11308), (2827, 11284), (3341, 9548), (3598, 8866), (4004, 7967), (4433, 7196), (4774, 6682), (5642, 5654)]