81507584

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 172677120

約数和(自身を除く): 91169536

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 109, 127, 128, 184, 218, 254, 256, 368, 436, 508, 736, 872, 1016, 1472, 1744, 2032, 2507, 2921, 2944, 3488, 4064, 5014, 5842, 5888, 6976, 8128, 10028, 11684, 13843, 13952, 16256, 20056, 23368, 27686, 27904, 32512, 40112, 46736, 55372, 80224, 93472, 110744, 160448, 186944, 221488, 318389, 320896, 373888, 442976, 636778, 641792, 747776, 885952, 1273556, 1771904, 2547112, 3543808, 5094224, 10188448, 20376896, 40753792, 81507584]

約数ペア:

[(1, 81507584), (2, 40753792), (4, 20376896), (8, 10188448), (16, 5094224), (23, 3543808), (32, 2547112), (46, 1771904), (64, 1273556), (92, 885952), (109, 747776), (127, 641792), (128, 636778), (184, 442976), (218, 373888), (254, 320896), (256, 318389), (368, 221488), (436, 186944), (508, 160448), (736, 110744), (872, 93472), (1016, 80224), (1472, 55372), (1744, 46736), (2032, 40112), (2507, 32512), (2921, 27904), (2944, 27686), (3488, 23368), (4064, 20056), (5014, 16256), (5842, 13952), (5888, 13843), (6976, 11684), (8128, 10028)]