131764480

素因数分解:

$2^8\times 5^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 317588544

約数和(自身を除く): 185824064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 311, 320, 331, 622, 640, 662, 1244, 1280, 1324, 1555, 1655, 2488, 2648, 3110, 3310, 4976, 5296, 6220, 6620, 9952, 10592, 12440, 13240, 19904, 21184, 24880, 26480, 39808, 42368, 49760, 52960, 79616, 84736, 99520, 102941, 105920, 199040, 205882, 211840, 398080, 411764, 423680, 514705, 823528, 1029410, 1647056, 2058820, 3294112, 4117640, 6588224, 8235280, 13176448, 16470560, 26352896, 32941120, 65882240, 131764480]

約数ペア:

[(1, 131764480), (2, 65882240), (4, 32941120), (5, 26352896), (8, 16470560), (10, 13176448), (16, 8235280), (20, 6588224), (32, 4117640), (40, 3294112), (64, 2058820), (80, 1647056), (128, 1029410), (160, 823528), (256, 514705), (311, 423680), (320, 411764), (331, 398080), (622, 211840), (640, 205882), (662, 199040), (1244, 105920), (1280, 102941), (1324, 99520), (1555, 84736), (1655, 79616), (2488, 52960), (2648, 49760), (3110, 42368), (3310, 39808), (4976, 26480), (5296, 24880), (6220, 21184), (6620, 19904), (9952, 13240), (10592, 12440)]