19220020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1367}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 24446540

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1367, 1406, 2734, 2812, 3515, 5468, 6835, 7030, 13670, 14060, 25973, 27340, 50579, 51946, 101158, 103892, 129865, 202316, 252895, 259730, 505790, 519460, 961001, 1011580, 1922002, 3844004, 4805005, 9610010, 19220020]

約数ペア:

[(1, 19220020), (2, 9610010), (4, 4805005), (5, 3844004), (10, 1922002), (19, 1011580), (20, 961001), (37, 519460), (38, 505790), (74, 259730), (76, 252895), (95, 202316), (148, 129865), (185, 103892), (190, 101158), (370, 51946), (380, 50579), (703, 27340), (740, 25973), (1367, 14060), (1406, 13670), (2734, 7030), (2812, 6835), (3515, 5468)]