404940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 1203552

約数和(自身を除く): 798612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 397, 510, 794, 1020, 1191, 1588, 1985, 2382, 3970, 4764, 5955, 6749, 7940, 11910, 13498, 20247, 23820, 26996, 33745, 40494, 67490, 80988, 101235, 134980, 202470, 404940]

約数ペア:

[(1, 404940), (2, 202470), (3, 134980), (4, 101235), (5, 80988), (6, 67490), (10, 40494), (12, 33745), (15, 26996), (17, 23820), (20, 20247), (30, 13498), (34, 11910), (51, 7940), (60, 6749), (68, 5955), (85, 4764), (102, 3970), (170, 2382), (204, 1985), (255, 1588), (340, 1191), (397, 1020), (510, 794)]