8141380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 18620784

約数和(自身を除く): 10479404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 181, 260, 346, 362, 692, 724, 865, 905, 1730, 1810, 2249, 2353, 3460, 3620, 4498, 4706, 8996, 9412, 11245, 11765, 22490, 23530, 31313, 44980, 47060, 62626, 125252, 156565, 313130, 407069, 626260, 814138, 1628276, 2035345, 4070690, 8141380]

約数ペア:

[(1, 8141380), (2, 4070690), (4, 2035345), (5, 1628276), (10, 814138), (13, 626260), (20, 407069), (26, 313130), (52, 156565), (65, 125252), (130, 62626), (173, 47060), (181, 44980), (260, 31313), (346, 23530), (362, 22490), (692, 11765), (724, 11245), (865, 9412), (905, 8996), (1730, 4706), (1810, 4498), (2249, 3620), (2353, 3460)]