257455440585

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{971}}^1\times {\mathrm{120247}}^1$

素因数の和:121243

約数の個数: 72

約数和(自身を含む): 519653174976

約数和(自身を除く): 262197734391

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 971, 2205, 2913, 4855, 6797, 8739, 14565, 20391, 33985, 43695, 47579, 61173, 101955, 120247, 142737, 237895, 305865, 360741, 428211, 601235, 713685, 841729, 1082223, 1803705, 2141055, 2525187, 4208645, 5411115, 5892103, 7575561, 12625935, 17676309, 29460515, 37877805, 53028927, 88381545, 116759837, 265144635, 350279511, 583799185, 817318859, 1050838533, 1751397555, 2451956577, 4086594295, 5254192665, 5721232013, 7355869731, 12259782885, 17163696039, 28606160065, 36779348655, 51491088117, 85818480195, 257455440585]

約数ペア:

[(1, 257455440585), (3, 85818480195), (5, 51491088117), (7, 36779348655), (9, 28606160065), (15, 17163696039), (21, 12259782885), (35, 7355869731), (45, 5721232013), (49, 5254192665), (63, 4086594295), (105, 2451956577), (147, 1751397555), (245, 1050838533), (315, 817318859), (441, 583799185), (735, 350279511), (971, 265144635), (2205, 116759837), (2913, 88381545), (4855, 53028927), (6797, 37877805), (8739, 29460515), (14565, 17676309), (20391, 12625935), (33985, 7575561), (43695, 5892103), (47579, 5411115), (61173, 4208645), (101955, 2525187), (120247, 2141055), (142737, 1803705), (237895, 1082223), (305865, 841729), (360741, 713685), (428211, 601235)]