20223980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7603}}^1$

素因数の和:7638

約数の個数: 48

約数和(自身を含む): 51098880

約数和(自身を除く): 30874900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7603, 15206, 30412, 38015, 53221, 76030, 106442, 144457, 152060, 212884, 266105, 288914, 532210, 577828, 722285, 1011199, 1064420, 1444570, 2022398, 2889140, 4044796, 5055995, 10111990, 20223980]

約数ペア:

[(1, 20223980), (2, 10111990), (4, 5055995), (5, 4044796), (7, 2889140), (10, 2022398), (14, 1444570), (19, 1064420), (20, 1011199), (28, 722285), (35, 577828), (38, 532210), (70, 288914), (76, 266105), (95, 212884), (133, 152060), (140, 144457), (190, 106442), (266, 76030), (380, 53221), (532, 38015), (665, 30412), (1330, 15206), (2660, 7603)]