11898940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 26601120

約数和(自身を除く): 14702180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 181, 190, 346, 362, 380, 692, 724, 865, 905, 1730, 1810, 3287, 3439, 3460, 3620, 6574, 6878, 13148, 13756, 16435, 17195, 31313, 32870, 34390, 62626, 65740, 68780, 125252, 156565, 313130, 594947, 626260, 1189894, 2379788, 2974735, 5949470, 11898940]

約数ペア:

[(1, 11898940), (2, 5949470), (4, 2974735), (5, 2379788), (10, 1189894), (19, 626260), (20, 594947), (38, 313130), (76, 156565), (95, 125252), (173, 68780), (181, 65740), (190, 62626), (346, 34390), (362, 32870), (380, 31313), (692, 17195), (724, 16435), (865, 13756), (905, 13148), (1730, 6878), (1810, 6574), (3287, 3620), (3439, 3460)]