19421708220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{398149}}^1$

素因数の和:398435

約数の個数: 72

約数和(自身を含む): 59130052800

約数和(自身を除く): 39708344580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 1084, 1355, 1626, 2439, 2710, 3252, 4065, 4878, 5420, 8130, 9756, 12195, 16260, 24390, 48780, 398149, 796298, 1194447, 1592596, 1990745, 2388894, 3583341, 3981490, 4777788, 5972235, 7166682, 7962980, 11944470, 14333364, 17916705, 23888940, 35833410, 71666820, 107898379, 215796758, 323695137, 431593516, 539491895, 647390274, 971085411, 1078983790, 1294780548, 1618475685, 1942170822, 2157967580, 3236951370, 3884341644, 4855427055, 6473902740, 9710854110, 19421708220]

約数ペア:

[(1, 19421708220), (2, 9710854110), (3, 6473902740), (4, 4855427055), (5, 3884341644), (6, 3236951370), (9, 2157967580), (10, 1942170822), (12, 1618475685), (15, 1294780548), (18, 1078983790), (20, 971085411), (30, 647390274), (36, 539491895), (45, 431593516), (60, 323695137), (90, 215796758), (180, 107898379), (271, 71666820), (542, 35833410), (813, 23888940), (1084, 17916705), (1355, 14333364), (1626, 11944470), (2439, 7962980), (2710, 7166682), (3252, 5972235), (4065, 4777788), (4878, 3981490), (5420, 3583341), (8130, 2388894), (9756, 1990745), (12195, 1592596), (16260, 1194447), (24390, 796298), (48780, 398149)]