4430420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 9979200

約数和(自身を除く): 5548780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 131, 178, 190, 262, 356, 380, 445, 524, 655, 890, 1310, 1691, 1780, 2489, 2620, 3382, 4978, 6764, 8455, 9956, 11659, 12445, 16910, 23318, 24890, 33820, 46636, 49780, 58295, 116590, 221521, 233180, 443042, 886084, 1107605, 2215210, 4430420]

約数ペア:

[(1, 4430420), (2, 2215210), (4, 1107605), (5, 886084), (10, 443042), (19, 233180), (20, 221521), (38, 116590), (76, 58295), (89, 49780), (95, 46636), (131, 33820), (178, 24890), (190, 23318), (262, 16910), (356, 12445), (380, 11659), (445, 9956), (524, 8455), (655, 6764), (890, 4978), (1310, 3382), (1691, 2620), (1780, 2489)]