127399940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3767}}^1$

素因数の和:3884

約数の個数: 48

約数和(自身を含む): 284860800

約数和(自身を除く): 157460860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 3767, 6764, 7534, 8455, 15068, 16910, 18835, 33820, 37670, 71573, 75340, 143146, 286292, 335263, 357865, 670526, 715730, 1341052, 1431460, 1676315, 3352630, 6369997, 6705260, 12739994, 25479988, 31849985, 63699970, 127399940]

約数ペア:

[(1, 127399940), (2, 63699970), (4, 31849985), (5, 25479988), (10, 12739994), (19, 6705260), (20, 6369997), (38, 3352630), (76, 1676315), (89, 1431460), (95, 1341052), (178, 715730), (190, 670526), (356, 357865), (380, 335263), (445, 286292), (890, 143146), (1691, 75340), (1780, 71573), (3382, 37670), (3767, 33820), (6764, 18835), (7534, 16910), (8455, 15068)]