18271120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 50889600

約数和(自身を除く): 32618480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 59, 70, 79, 80, 98, 112, 118, 140, 158, 196, 236, 245, 280, 295, 316, 392, 395, 413, 472, 490, 553, 560, 590, 632, 784, 790, 826, 944, 980, 1106, 1180, 1264, 1580, 1652, 1960, 2065, 2212, 2360, 2765, 2891, 3160, 3304, 3871, 3920, 4130, 4424, 4661, 4720, 5530, 5782, 6320, 6608, 7742, 8260, 8848, 9322, 11060, 11564, 14455, 15484, 16520, 18644, 19355, 22120, 23128, 23305, 28910, 30968, 32627, 33040, 37288, 38710, 44240, 46256, 46610, 57820, 61936, 65254, 74576, 77420, 93220, 115640, 130508, 154840, 163135, 186440, 228389, 231280, 261016, 309680, 326270, 372880, 456778, 522032, 652540, 913556, 1141945, 1305080, 1827112, 2283890, 2610160, 3654224, 4567780, 9135560, 18271120]

約数ペア:

[(1, 18271120), (2, 9135560), (4, 4567780), (5, 3654224), (7, 2610160), (8, 2283890), (10, 1827112), (14, 1305080), (16, 1141945), (20, 913556), (28, 652540), (35, 522032), (40, 456778), (49, 372880), (56, 326270), (59, 309680), (70, 261016), (79, 231280), (80, 228389), (98, 186440), (112, 163135), (118, 154840), (140, 130508), (158, 115640), (196, 93220), (236, 77420), (245, 74576), (280, 65254), (295, 61936), (316, 57820), (392, 46610), (395, 46256), (413, 44240), (472, 38710), (490, 37288), (553, 33040), (560, 32627), (590, 30968), (632, 28910), (784, 23305), (790, 23128), (826, 22120), (944, 19355), (980, 18644), (1106, 16520), (1180, 15484), (1264, 14455), (1580, 11564), (1652, 11060), (1960, 9322), (2065, 8848), (2212, 8260), (2360, 7742), (2765, 6608), (2891, 6320), (3160, 5782), (3304, 5530), (3871, 4720), (3920, 4661), (4130, 4424)]