18004480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:577

約数の個数: 80

約数和(自身を含む): 46575144

約数和(自身を除く): 28570664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 541, 640, 832, 1040, 1082, 1280, 1664, 2080, 2164, 2560, 2705, 3328, 4160, 4328, 5410, 6656, 7033, 8320, 8656, 10820, 14066, 16640, 17312, 21640, 28132, 33280, 34624, 35165, 43280, 56264, 69248, 70330, 86560, 112528, 138496, 140660, 173120, 225056, 276992, 281320, 346240, 450112, 562640, 692480, 900224, 1125280, 1384960, 1800448, 2250560, 3600896, 4501120, 9002240, 18004480]

約数ペア:

[(1, 18004480), (2, 9002240), (4, 4501120), (5, 3600896), (8, 2250560), (10, 1800448), (13, 1384960), (16, 1125280), (20, 900224), (26, 692480), (32, 562640), (40, 450112), (52, 346240), (64, 281320), (65, 276992), (80, 225056), (104, 173120), (128, 140660), (130, 138496), (160, 112528), (208, 86560), (256, 70330), (260, 69248), (320, 56264), (416, 43280), (512, 35165), (520, 34624), (541, 33280), (640, 28132), (832, 21640), (1040, 17312), (1082, 16640), (1280, 14066), (1664, 10820), (2080, 8656), (2164, 8320), (2560, 7033), (2705, 6656), (3328, 5410), (4160, 4328)]