19814720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3259}}^1$

素因数の和:3295

約数の個数: 56

約数和(自身を含む): 49682400

約数和(自身を除く): 29867680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3259, 6080, 6518, 13036, 16295, 26072, 32590, 52144, 61921, 65180, 104288, 123842, 130360, 208576, 247684, 260720, 309605, 495368, 521440, 619210, 990736, 1042880, 1238420, 1981472, 2476840, 3962944, 4953680, 9907360, 19814720]

約数ペア:

[(1, 19814720), (2, 9907360), (4, 4953680), (5, 3962944), (8, 2476840), (10, 1981472), (16, 1238420), (19, 1042880), (20, 990736), (32, 619210), (38, 521440), (40, 495368), (64, 309605), (76, 260720), (80, 247684), (95, 208576), (152, 130360), (160, 123842), (190, 104288), (304, 65180), (320, 61921), (380, 52144), (608, 32590), (760, 26072), (1216, 16295), (1520, 13036), (3040, 6518), (3259, 6080)]