180391040

素因数分解:

$2^7\times 5^1\times {\mathrm{521}}^1\times {\mathrm{541}}^1$

素因数の和:1081

約数の個数: 64

約数和(自身を含む): 432873720

約数和(自身を除く): 252482680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 521, 541, 640, 1042, 1082, 2084, 2164, 2605, 2705, 4168, 4328, 5210, 5410, 8336, 8656, 10420, 10820, 16672, 17312, 20840, 21640, 33344, 34624, 41680, 43280, 66688, 69248, 83360, 86560, 166720, 173120, 281861, 333440, 346240, 563722, 1127444, 1409305, 2254888, 2818610, 4509776, 5637220, 9019552, 11274440, 18039104, 22548880, 36078208, 45097760, 90195520, 180391040]

約数ペア:

[(1, 180391040), (2, 90195520), (4, 45097760), (5, 36078208), (8, 22548880), (10, 18039104), (16, 11274440), (20, 9019552), (32, 5637220), (40, 4509776), (64, 2818610), (80, 2254888), (128, 1409305), (160, 1127444), (320, 563722), (521, 346240), (541, 333440), (640, 281861), (1042, 173120), (1082, 166720), (2084, 86560), (2164, 83360), (2605, 69248), (2705, 66688), (4168, 43280), (4328, 41680), (5210, 34624), (5410, 33344), (8336, 21640), (8656, 20840), (10420, 17312), (10820, 16672)]