397768960

素因数分解:

$2^8\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1627}}^1$

素因数の和:1839

約数の個数: 72

約数和(自身を含む): 958358016

約数和(自身を除く): 560589056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 256, 320, 382, 640, 764, 955, 1280, 1528, 1627, 1910, 3056, 3254, 3820, 6112, 6508, 7640, 8135, 12224, 13016, 15280, 16270, 24448, 26032, 30560, 32540, 48896, 52064, 61120, 65080, 104128, 122240, 130160, 208256, 244480, 260320, 310757, 416512, 520640, 621514, 1041280, 1243028, 1553785, 2082560, 2486056, 3107570, 4972112, 6215140, 9944224, 12430280, 19888448, 24860560, 39776896, 49721120, 79553792, 99442240, 198884480, 397768960]

約数ペア:

[(1, 397768960), (2, 198884480), (4, 99442240), (5, 79553792), (8, 49721120), (10, 39776896), (16, 24860560), (20, 19888448), (32, 12430280), (40, 9944224), (64, 6215140), (80, 4972112), (128, 3107570), (160, 2486056), (191, 2082560), (256, 1553785), (320, 1243028), (382, 1041280), (640, 621514), (764, 520640), (955, 416512), (1280, 310757), (1528, 260320), (1627, 244480), (1910, 208256), (3056, 130160), (3254, 122240), (3820, 104128), (6112, 65080), (6508, 61120), (7640, 52064), (8135, 48896), (12224, 32540), (13016, 30560), (15280, 26032), (16270, 24448)]