20453180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2999}}^1$

素因数の和:3050

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 27930820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2999, 3410, 5998, 6820, 11996, 14995, 29990, 32989, 59980, 65978, 92969, 131956, 164945, 185938, 329890, 371876, 464845, 659780, 929690, 1022659, 1859380, 2045318, 4090636, 5113295, 10226590, 20453180]

約数ペア:

[(1, 20453180), (2, 10226590), (4, 5113295), (5, 4090636), (10, 2045318), (11, 1859380), (20, 1022659), (22, 929690), (31, 659780), (44, 464845), (55, 371876), (62, 329890), (110, 185938), (124, 164945), (155, 131956), (220, 92969), (310, 65978), (341, 59980), (620, 32989), (682, 29990), (1364, 14995), (1705, 11996), (2999, 6820), (3410, 5998)]