19508830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{701}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 20825282

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 121, 230, 242, 253, 506, 605, 701, 1210, 1265, 1402, 2530, 2783, 3505, 5566, 7010, 7711, 13915, 15422, 16123, 27830, 32246, 38555, 77110, 80615, 84821, 161230, 169642, 177353, 354706, 424105, 848210, 886765, 1773530, 1950883, 3901766, 9754415, 19508830]

約数ペア:

[(1, 19508830), (2, 9754415), (5, 3901766), (10, 1950883), (11, 1773530), (22, 886765), (23, 848210), (46, 424105), (55, 354706), (110, 177353), (115, 169642), (121, 161230), (230, 84821), (242, 80615), (253, 77110), (506, 38555), (605, 32246), (701, 27830), (1210, 16123), (1265, 15422), (1402, 13915), (2530, 7711), (2783, 7010), (3505, 5566)]