280580860

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{5843}}^1$

素因数の和:5880

約数の個数: 60

約数和(自身を含む): 687499848

約数和(自身を除く): 406918988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2401, 3430, 4802, 5843, 6860, 9604, 11686, 12005, 23372, 24010, 29215, 40901, 48020, 58430, 81802, 116860, 163604, 204505, 286307, 409010, 572614, 818020, 1145228, 1431535, 2004149, 2863070, 4008298, 5726140, 8016596, 10020745, 14029043, 20041490, 28058086, 40082980, 56116172, 70145215, 140290430, 280580860]

約数ペア:

[(1, 280580860), (2, 140290430), (4, 70145215), (5, 56116172), (7, 40082980), (10, 28058086), (14, 20041490), (20, 14029043), (28, 10020745), (35, 8016596), (49, 5726140), (70, 4008298), (98, 2863070), (140, 2004149), (196, 1431535), (245, 1145228), (343, 818020), (490, 572614), (686, 409010), (980, 286307), (1372, 204505), (1715, 163604), (2401, 116860), (3430, 81802), (4802, 58430), (5843, 48020), (6860, 40901), (9604, 29215), (11686, 24010), (12005, 23372)]