78420240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{108917}}^1$

素因数の和:108936

約数の個数: 60

約数和(自身を含む): 263363724

約数和(自身を除く): 184943484

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 108917, 217834, 326751, 435668, 544585, 653502, 871336, 980253, 1089170, 1307004, 1633755, 1742672, 1960506, 2178340, 2614008, 3267510, 3921012, 4356680, 4901265, 5228016, 6535020, 7842024, 8713360, 9802530, 13070040, 15684048, 19605060, 26140080, 39210120, 78420240]

約数ペア:

[(1, 78420240), (2, 39210120), (3, 26140080), (4, 19605060), (5, 15684048), (6, 13070040), (8, 9802530), (9, 8713360), (10, 7842024), (12, 6535020), (15, 5228016), (16, 4901265), (18, 4356680), (20, 3921012), (24, 3267510), (30, 2614008), (36, 2178340), (40, 1960506), (45, 1742672), (48, 1633755), (60, 1307004), (72, 1089170), (80, 980253), (90, 871336), (120, 653502), (144, 544585), (180, 435668), (240, 326751), (360, 217834), (720, 108917)]