257213572

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 108

約数和(自身を含む): 591669120

約数和(自身を除く): 334455548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 79, 121, 124, 154, 158, 217, 242, 308, 316, 341, 434, 484, 553, 682, 847, 868, 869, 961, 1106, 1364, 1694, 1738, 1922, 2212, 2387, 2449, 3388, 3476, 3751, 3844, 4774, 4898, 6083, 6727, 7502, 9548, 9559, 9796, 10571, 12166, 13454, 15004, 17143, 19118, 21142, 24332, 26257, 26908, 26939, 34286, 38236, 42284, 52514, 53878, 66913, 68572, 73997, 75919, 105028, 107756, 116281, 133826, 147994, 151838, 188573, 232562, 267652, 295988, 296329, 303676, 377146, 465124, 531433, 592658, 754292, 813967, 835109, 1062866, 1185316, 1627934, 1670218, 2074303, 2125732, 3255868, 3340436, 4148606, 5845763, 8297212, 9186199, 11691526, 18372398, 23383052, 36744796, 64303393, 128606786, 257213572]

約数ペア:

[(1, 257213572), (2, 128606786), (4, 64303393), (7, 36744796), (11, 23383052), (14, 18372398), (22, 11691526), (28, 9186199), (31, 8297212), (44, 5845763), (62, 4148606), (77, 3340436), (79, 3255868), (121, 2125732), (124, 2074303), (154, 1670218), (158, 1627934), (217, 1185316), (242, 1062866), (308, 835109), (316, 813967), (341, 754292), (434, 592658), (484, 531433), (553, 465124), (682, 377146), (847, 303676), (868, 296329), (869, 295988), (961, 267652), (1106, 232562), (1364, 188573), (1694, 151838), (1738, 147994), (1922, 133826), (2212, 116281), (2387, 107756), (2449, 105028), (3388, 75919), (3476, 73997), (3751, 68572), (3844, 66913), (4774, 53878), (4898, 52514), (6083, 42284), (6727, 38236), (7502, 34286), (9548, 26939), (9559, 26908), (9796, 26257), (10571, 24332), (12166, 21142), (13454, 19118), (15004, 17143)]