19657020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 59431680

約数和(自身を除く): 39774660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 401, 430, 516, 570, 645, 802, 817, 860, 1140, 1203, 1290, 1604, 1634, 2005, 2406, 2451, 2580, 3268, 4010, 4085, 4812, 4902, 6015, 7619, 8020, 8170, 9804, 12030, 12255, 15238, 16340, 17243, 22857, 24060, 24510, 30476, 34486, 38095, 45714, 49020, 51729, 68972, 76190, 86215, 91428, 103458, 114285, 152380, 172430, 206916, 228570, 258645, 327617, 344860, 457140, 517290, 655234, 982851, 1034580, 1310468, 1638085, 1965702, 3276170, 3931404, 4914255, 6552340, 9828510, 19657020]

約数ペア:

[(1, 19657020), (2, 9828510), (3, 6552340), (4, 4914255), (5, 3931404), (6, 3276170), (10, 1965702), (12, 1638085), (15, 1310468), (19, 1034580), (20, 982851), (30, 655234), (38, 517290), (43, 457140), (57, 344860), (60, 327617), (76, 258645), (86, 228570), (95, 206916), (114, 172430), (129, 152380), (172, 114285), (190, 103458), (215, 91428), (228, 86215), (258, 76190), (285, 68972), (380, 51729), (401, 49020), (430, 45714), (516, 38095), (570, 34486), (645, 30476), (802, 24510), (817, 24060), (860, 22857), (1140, 17243), (1203, 16340), (1290, 15238), (1604, 12255), (1634, 12030), (2005, 9804), (2406, 8170), (2451, 8020), (2580, 7619), (3268, 6015), (4010, 4902), (4085, 4812)]