489483980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{3767}}^1$

素因数の和:3938

約数の個数: 48

約数和(自身を含む): 1053984960

約数和(自身を除く): 564500980

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 730, 890, 1460, 1780, 3767, 6497, 7534, 12994, 15068, 18835, 25988, 32485, 37670, 64970, 75340, 129940, 274991, 335263, 549982, 670526, 1099964, 1341052, 1374955, 1676315, 2749910, 3352630, 5499820, 6705260, 24474199, 48948398, 97896796, 122370995, 244741990, 489483980]

約数ペア:

[(1, 489483980), (2, 244741990), (4, 122370995), (5, 97896796), (10, 48948398), (20, 24474199), (73, 6705260), (89, 5499820), (146, 3352630), (178, 2749910), (292, 1676315), (356, 1374955), (365, 1341052), (445, 1099964), (730, 670526), (890, 549982), (1460, 335263), (1780, 274991), (3767, 129940), (6497, 75340), (7534, 64970), (12994, 37670), (15068, 32485), (18835, 25988)]