142377980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 304106880

約数和(自身を除く): 161728900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 241, 271, 436, 482, 542, 545, 964, 1084, 1090, 1205, 1355, 2180, 2410, 2710, 4820, 5420, 26269, 29539, 52538, 59078, 65311, 105076, 118156, 130622, 131345, 147695, 261244, 262690, 295390, 326555, 525380, 590780, 653110, 1306220, 7118899, 14237798, 28475596, 35594495, 71188990, 142377980]

約数ペア:

[(1, 142377980), (2, 71188990), (4, 35594495), (5, 28475596), (10, 14237798), (20, 7118899), (109, 1306220), (218, 653110), (241, 590780), (271, 525380), (436, 326555), (482, 295390), (542, 262690), (545, 261244), (964, 147695), (1084, 131345), (1090, 130622), (1205, 118156), (1355, 105076), (2180, 65311), (2410, 59078), (2710, 52538), (4820, 29539), (5420, 26269)]