28718940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{733}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 80646048

約数和(自身を除く): 51927108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 653, 733, 1306, 1466, 1959, 2199, 2612, 2932, 3265, 3665, 3918, 4398, 6530, 7330, 7836, 8796, 9795, 10995, 13060, 14660, 19590, 21990, 39180, 43980, 478649, 957298, 1435947, 1914596, 2393245, 2871894, 4786490, 5743788, 7179735, 9572980, 14359470, 28718940]

約数ペア:

[(1, 28718940), (2, 14359470), (3, 9572980), (4, 7179735), (5, 5743788), (6, 4786490), (10, 2871894), (12, 2393245), (15, 1914596), (20, 1435947), (30, 957298), (60, 478649), (653, 43980), (733, 39180), (1306, 21990), (1466, 19590), (1959, 14660), (2199, 13060), (2612, 10995), (2932, 9795), (3265, 8796), (3665, 7836), (3918, 7330), (4398, 6530)]