18901170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{397}}^1$

素因数の和:456

約数の個数: 72

約数和(自身を含む): 51501996

約数和(自身を除く): 32600826

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 397, 414, 529, 690, 794, 1035, 1058, 1191, 1587, 1985, 2070, 2382, 2645, 3174, 3573, 3970, 4761, 5290, 5955, 7146, 7935, 9131, 9522, 11910, 15870, 17865, 18262, 23805, 27393, 35730, 45655, 47610, 54786, 82179, 91310, 136965, 164358, 210013, 273930, 410895, 420026, 630039, 821790, 1050065, 1260078, 1890117, 2100130, 3150195, 3780234, 6300390, 9450585, 18901170]

約数ペア:

[(1, 18901170), (2, 9450585), (3, 6300390), (5, 3780234), (6, 3150195), (9, 2100130), (10, 1890117), (15, 1260078), (18, 1050065), (23, 821790), (30, 630039), (45, 420026), (46, 410895), (69, 273930), (90, 210013), (115, 164358), (138, 136965), (207, 91310), (230, 82179), (345, 54786), (397, 47610), (414, 45655), (529, 35730), (690, 27393), (794, 23805), (1035, 18262), (1058, 17865), (1191, 15870), (1587, 11910), (1985, 9522), (2070, 9131), (2382, 7935), (2645, 7146), (3174, 5955), (3573, 5290), (3970, 4761)]