127991780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39749}}^1$

素因数の和:39788

約数の個数: 48

約数和(自身を含む): 320544000

約数和(自身を除く): 192552220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 39749, 79498, 158996, 198745, 278243, 397490, 556486, 794980, 914227, 1112972, 1391215, 1828454, 2782430, 3656908, 4571135, 5564860, 6399589, 9142270, 12799178, 18284540, 25598356, 31997945, 63995890, 127991780]

約数ペア:

[(1, 127991780), (2, 63995890), (4, 31997945), (5, 25598356), (7, 18284540), (10, 12799178), (14, 9142270), (20, 6399589), (23, 5564860), (28, 4571135), (35, 3656908), (46, 2782430), (70, 1828454), (92, 1391215), (115, 1112972), (140, 914227), (161, 794980), (230, 556486), (322, 397490), (460, 278243), (644, 198745), (805, 158996), (1610, 79498), (3220, 39749)]