42088990

素因数分解:

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

素因数の和:265

約数の個数: 48

約数和(自身を含む): 81473040

約数和(自身を除く): 39384050

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 131, 178, 190, 262, 361, 445, 655, 722, 890, 1310, 1691, 1805, 2489, 3382, 3610, 4978, 8455, 11659, 12445, 16910, 23318, 24890, 32129, 47291, 58295, 64258, 94582, 116590, 160645, 221521, 236455, 321290, 443042, 472910, 1107605, 2215210, 4208899, 8417798, 21044495, 42088990]

約数ペア:

[(1, 42088990), (2, 21044495), (5, 8417798), (10, 4208899), (19, 2215210), (38, 1107605), (89, 472910), (95, 443042), (131, 321290), (178, 236455), (190, 221521), (262, 160645), (361, 116590), (445, 94582), (655, 64258), (722, 58295), (890, 47291), (1310, 32129), (1691, 24890), (1805, 23318), (2489, 16910), (3382, 12445), (3610, 11659), (4978, 8455)]