389664950

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:833

約数の個数: 48

約数和(自身を含む): 741046320

約数和(自身を除く): 351381370

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 251, 305, 502, 509, 610, 1018, 1255, 1525, 2510, 2545, 3050, 5090, 6275, 12550, 12725, 15311, 25450, 30622, 31049, 62098, 76555, 127759, 153110, 155245, 255518, 310490, 382775, 638795, 765550, 776225, 1277590, 1552450, 3193975, 6387950, 7793299, 15586598, 38966495, 77932990, 194832475, 389664950]

約数ペア:

[(1, 389664950), (2, 194832475), (5, 77932990), (10, 38966495), (25, 15586598), (50, 7793299), (61, 6387950), (122, 3193975), (251, 1552450), (305, 1277590), (502, 776225), (509, 765550), (610, 638795), (1018, 382775), (1255, 310490), (1525, 255518), (2510, 155245), (2545, 153110), (3050, 127759), (5090, 76555), (6275, 62098), (12550, 31049), (12725, 30622), (15311, 25450)]