25844480

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 63110544

約数和(自身を除く): 37266064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 331, 488, 610, 640, 662, 976, 1220, 1280, 1324, 1655, 1952, 2440, 2648, 3310, 3904, 4880, 5296, 6620, 7808, 9760, 10592, 13240, 15616, 19520, 20191, 21184, 26480, 39040, 40382, 42368, 52960, 78080, 80764, 84736, 100955, 105920, 161528, 201910, 211840, 323056, 403820, 423680, 646112, 807640, 1292224, 1615280, 2584448, 3230560, 5168896, 6461120, 12922240, 25844480]

約数ペア:

[(1, 25844480), (2, 12922240), (4, 6461120), (5, 5168896), (8, 3230560), (10, 2584448), (16, 1615280), (20, 1292224), (32, 807640), (40, 646112), (61, 423680), (64, 403820), (80, 323056), (122, 211840), (128, 201910), (160, 161528), (244, 105920), (256, 100955), (305, 84736), (320, 80764), (331, 78080), (488, 52960), (610, 42368), (640, 40382), (662, 39040), (976, 26480), (1220, 21184), (1280, 20191), (1324, 19520), (1655, 15616), (1952, 13240), (2440, 10592), (2648, 9760), (3310, 7808), (3904, 6620), (4880, 5296)]