25723720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 70761600

約数和(自身を除く): 45037880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 181, 187, 190, 209, 220, 323, 340, 362, 374, 380, 418, 440, 646, 680, 724, 748, 760, 836, 905, 935, 1045, 1292, 1448, 1496, 1615, 1672, 1810, 1870, 1991, 2090, 2584, 3077, 3230, 3439, 3553, 3620, 3740, 3982, 4180, 6154, 6460, 6878, 7106, 7240, 7480, 7964, 8360, 9955, 12308, 12920, 13756, 14212, 15385, 15928, 17195, 17765, 19910, 24616, 27512, 28424, 30770, 33847, 34390, 35530, 37829, 39820, 58463, 61540, 67694, 68780, 71060, 75658, 79640, 116926, 123080, 135388, 137560, 142120, 151316, 169235, 189145, 233852, 270776, 292315, 302632, 338470, 378290, 467704, 584630, 643093, 676940, 756580, 1169260, 1286186, 1353880, 1513160, 2338520, 2572372, 3215465, 5144744, 6430930, 12861860, 25723720]

約数ペア:

[(1, 25723720), (2, 12861860), (4, 6430930), (5, 5144744), (8, 3215465), (10, 2572372), (11, 2338520), (17, 1513160), (19, 1353880), (20, 1286186), (22, 1169260), (34, 756580), (38, 676940), (40, 643093), (44, 584630), (55, 467704), (68, 378290), (76, 338470), (85, 302632), (88, 292315), (95, 270776), (110, 233852), (136, 189145), (152, 169235), (170, 151316), (181, 142120), (187, 137560), (190, 135388), (209, 123080), (220, 116926), (323, 79640), (340, 75658), (362, 71060), (374, 68780), (380, 67694), (418, 61540), (440, 58463), (646, 39820), (680, 37829), (724, 35530), (748, 34390), (760, 33847), (836, 30770), (905, 28424), (935, 27512), (1045, 24616), (1292, 19910), (1448, 17765), (1496, 17195), (1615, 15928), (1672, 15385), (1810, 14212), (1870, 13756), (1991, 12920), (2090, 12308), (2584, 9955), (3077, 8360), (3230, 7964), (3439, 7480), (3553, 7240), (3620, 7106), (3740, 6878), (3982, 6460), (4180, 6154)]