256969908

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^3\times {\mathrm{19}}^2$

素因数の和:93

約数の個数: 180

約数和(自身を含む): 768042660

約数和(自身を除く): 511072752

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 81, 108, 114, 117, 156, 162, 169, 171, 228, 234, 247, 324, 338, 342, 351, 361, 468, 494, 507, 513, 676, 684, 702, 722, 741, 988, 1014, 1026, 1053, 1083, 1404, 1444, 1482, 1521, 1539, 2028, 2052, 2106, 2166, 2197, 2223, 2964, 3042, 3078, 3211, 3249, 4212, 4332, 4394, 4446, 4563, 4693, 6084, 6156, 6422, 6498, 6591, 6669, 8788, 8892, 9126, 9386, 9633, 9747, 12844, 12996, 13182, 13338, 13689, 14079, 18252, 18772, 19266, 19494, 19773, 20007, 26364, 26676, 27378, 28158, 28899, 29241, 38532, 38988, 39546, 40014, 41743, 42237, 54756, 56316, 57798, 58482, 59319, 61009, 79092, 80028, 83486, 84474, 86697, 115596, 116964, 118638, 122018, 125229, 126711, 166972, 168948, 173394, 177957, 183027, 237276, 244036, 250458, 253422, 260091, 346788, 355914, 366054, 375687, 380133, 500916, 506844, 520182, 549081, 711828, 732108, 751374, 760266, 793117, 1040364, 1098162, 1127061, 1502748, 1520532, 1586234, 1647243, 2196324, 2254122, 2379351, 3172468, 3294486, 3381183, 4508244, 4758702, 4941729, 6588972, 6762366, 7138053, 9517404, 9883458, 13524732, 14276106, 19766916, 21414159, 28552212, 42828318, 64242477, 85656636, 128484954, 256969908]

約数ペア:

[(1, 256969908), (2, 128484954), (3, 85656636), (4, 64242477), (6, 42828318), (9, 28552212), (12, 21414159), (13, 19766916), (18, 14276106), (19, 13524732), (26, 9883458), (27, 9517404), (36, 7138053), (38, 6762366), (39, 6588972), (52, 4941729), (54, 4758702), (57, 4508244), (76, 3381183), (78, 3294486), (81, 3172468), (108, 2379351), (114, 2254122), (117, 2196324), (156, 1647243), (162, 1586234), (169, 1520532), (171, 1502748), (228, 1127061), (234, 1098162), (247, 1040364), (324, 793117), (338, 760266), (342, 751374), (351, 732108), (361, 711828), (468, 549081), (494, 520182), (507, 506844), (513, 500916), (676, 380133), (684, 375687), (702, 366054), (722, 355914), (741, 346788), (988, 260091), (1014, 253422), (1026, 250458), (1053, 244036), (1083, 237276), (1404, 183027), (1444, 177957), (1482, 173394), (1521, 168948), (1539, 166972), (2028, 126711), (2052, 125229), (2106, 122018), (2166, 118638), (2197, 116964), (2223, 115596), (2964, 86697), (3042, 84474), (3078, 83486), (3211, 80028), (3249, 79092), (4212, 61009), (4332, 59319), (4394, 58482), (4446, 57798), (4563, 56316), (4693, 54756), (6084, 42237), (6156, 41743), (6422, 40014), (6498, 39546), (6591, 38988), (6669, 38532), (8788, 29241), (8892, 28899), (9126, 28158), (9386, 27378), (9633, 26676), (9747, 26364), (12844, 20007), (12996, 19773), (13182, 19494), (13338, 19266), (13689, 18772), (14079, 18252)]