20468280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{59}}^2$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 72661320

約数和(自身を除く): 52193040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 59, 60, 70, 84, 98, 105, 118, 120, 140, 147, 168, 177, 196, 210, 236, 245, 280, 294, 295, 354, 392, 413, 420, 472, 490, 588, 590, 708, 735, 826, 840, 885, 980, 1176, 1180, 1239, 1416, 1470, 1652, 1770, 1960, 2065, 2360, 2478, 2891, 2940, 3304, 3481, 3540, 4130, 4956, 5782, 5880, 6195, 6962, 7080, 8260, 8673, 9912, 10443, 11564, 12390, 13924, 14455, 16520, 17346, 17405, 20886, 23128, 24367, 24780, 27848, 28910, 34692, 34810, 41772, 43365, 48734, 49560, 52215, 57820, 69384, 69620, 73101, 83544, 86730, 97468, 104430, 115640, 121835, 139240, 146202, 170569, 173460, 194936, 208860, 243670, 292404, 341138, 346920, 365505, 417720, 487340, 511707, 584808, 682276, 731010, 852845, 974680, 1023414, 1364552, 1462020, 1705690, 2046828, 2558535, 2924040, 3411380, 4093656, 5117070, 6822760, 10234140, 20468280]

約数ペア:

[(1, 20468280), (2, 10234140), (3, 6822760), (4, 5117070), (5, 4093656), (6, 3411380), (7, 2924040), (8, 2558535), (10, 2046828), (12, 1705690), (14, 1462020), (15, 1364552), (20, 1023414), (21, 974680), (24, 852845), (28, 731010), (30, 682276), (35, 584808), (40, 511707), (42, 487340), (49, 417720), (56, 365505), (59, 346920), (60, 341138), (70, 292404), (84, 243670), (98, 208860), (105, 194936), (118, 173460), (120, 170569), (140, 146202), (147, 139240), (168, 121835), (177, 115640), (196, 104430), (210, 97468), (236, 86730), (245, 83544), (280, 73101), (294, 69620), (295, 69384), (354, 57820), (392, 52215), (413, 49560), (420, 48734), (472, 43365), (490, 41772), (588, 34810), (590, 34692), (708, 28910), (735, 27848), (826, 24780), (840, 24367), (885, 23128), (980, 20886), (1176, 17405), (1180, 17346), (1239, 16520), (1416, 14455), (1470, 13924), (1652, 12390), (1770, 11564), (1960, 10443), (2065, 9912), (2360, 8673), (2478, 8260), (2891, 7080), (2940, 6962), (3304, 6195), (3481, 5880), (3540, 5782), (4130, 4956)]