287687520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{199783}}^1$

素因数の和:199804

約数の個数: 72

約数和(自身を含む): 981738576

約数和(自身を除く): 694051056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 199783, 399566, 599349, 799132, 998915, 1198698, 1598264, 1798047, 1997830, 2397396, 2996745, 3196528, 3596094, 3995660, 4794792, 5993490, 6393056, 7192188, 7991320, 8990235, 9589584, 11986980, 14384376, 15982640, 17980470, 19179168, 23973960, 28768752, 31965280, 35960940, 47947920, 57537504, 71921880, 95895840, 143843760, 287687520]

約数ペア:

[(1, 287687520), (2, 143843760), (3, 95895840), (4, 71921880), (5, 57537504), (6, 47947920), (8, 35960940), (9, 31965280), (10, 28768752), (12, 23973960), (15, 19179168), (16, 17980470), (18, 15982640), (20, 14384376), (24, 11986980), (30, 9589584), (32, 8990235), (36, 7991320), (40, 7192188), (45, 6393056), (48, 5993490), (60, 4794792), (72, 3995660), (80, 3596094), (90, 3196528), (96, 2996745), (120, 2397396), (144, 1997830), (160, 1798047), (180, 1598264), (240, 1198698), (288, 998915), (360, 799132), (480, 599349), (720, 399566), (1440, 199783)]