18838720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3463}}^1$

素因数の和:3497

約数の個数: 56

約数和(自身を含む): 47512224

約数和(自身を除く): 28673504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3463, 5440, 6926, 13852, 17315, 27704, 34630, 55408, 58871, 69260, 110816, 117742, 138520, 221632, 235484, 277040, 294355, 470968, 554080, 588710, 941936, 1108160, 1177420, 1883872, 2354840, 3767744, 4709680, 9419360, 18838720]

約数ペア:

[(1, 18838720), (2, 9419360), (4, 4709680), (5, 3767744), (8, 2354840), (10, 1883872), (16, 1177420), (17, 1108160), (20, 941936), (32, 588710), (34, 554080), (40, 470968), (64, 294355), (68, 277040), (80, 235484), (85, 221632), (136, 138520), (160, 117742), (170, 110816), (272, 69260), (320, 58871), (340, 55408), (544, 34630), (680, 27704), (1088, 17315), (1360, 13852), (2720, 6926), (3463, 5440)]