18164480

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 45474912

約数和(自身を除く): 27310432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 617, 640, 736, 920, 1234, 1280, 1472, 1840, 2468, 2944, 3085, 3680, 4936, 5888, 6170, 7360, 9872, 12340, 14191, 14720, 19744, 24680, 28382, 29440, 39488, 49360, 56764, 70955, 78976, 98720, 113528, 141910, 157952, 197440, 227056, 283820, 394880, 454112, 567640, 789760, 908224, 1135280, 1816448, 2270560, 3632896, 4541120, 9082240, 18164480]

約数ペア:

[(1, 18164480), (2, 9082240), (4, 4541120), (5, 3632896), (8, 2270560), (10, 1816448), (16, 1135280), (20, 908224), (23, 789760), (32, 567640), (40, 454112), (46, 394880), (64, 283820), (80, 227056), (92, 197440), (115, 157952), (128, 141910), (160, 113528), (184, 98720), (230, 78976), (256, 70955), (320, 56764), (368, 49360), (460, 39488), (617, 29440), (640, 28382), (736, 24680), (920, 19744), (1234, 14720), (1280, 14191), (1472, 12340), (1840, 9872), (2468, 7360), (2944, 6170), (3085, 5888), (3680, 4936)]