18799683880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1\times {\mathrm{641}}^1$

素因数の和:1195

約数の個数: 128

約数和(自身を含む): 44929728000

約数和(自身を除く): 26130044120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 449, 460, 568, 641, 710, 898, 920, 1282, 1420, 1633, 1796, 2245, 2564, 2840, 3205, 3266, 3592, 4490, 5128, 6410, 6532, 8165, 8980, 10327, 12820, 13064, 14743, 16330, 17960, 20654, 25640, 29486, 31879, 32660, 41308, 45511, 51635, 58972, 63758, 65320, 73715, 82616, 91022, 103270, 117944, 127516, 147430, 159395, 182044, 206540, 227555, 255032, 287809, 294860, 318790, 364088, 413080, 455110, 575618, 589720, 637580, 733217, 910220, 1046753, 1151236, 1275160, 1439045, 1466434, 1820440, 2093506, 2302472, 2878090, 2932868, 3666085, 4187012, 5233765, 5756180, 5865736, 6619607, 7332170, 8374024, 10467530, 11512360, 13239214, 14664340, 20434439, 20935060, 26478428, 29328680, 33098035, 40868878, 41870120, 52956856, 66196070, 81737756, 102172195, 132392140, 163475512, 204344390, 264784280, 408688780, 469992097, 817377560, 939984194, 1879968388, 2349960485, 3759936776, 4699920970, 9399841940, 18799683880]

約数ペア:

[(1, 18799683880), (2, 9399841940), (4, 4699920970), (5, 3759936776), (8, 2349960485), (10, 1879968388), (20, 939984194), (23, 817377560), (40, 469992097), (46, 408688780), (71, 264784280), (92, 204344390), (115, 163475512), (142, 132392140), (184, 102172195), (230, 81737756), (284, 66196070), (355, 52956856), (449, 41870120), (460, 40868878), (568, 33098035), (641, 29328680), (710, 26478428), (898, 20935060), (920, 20434439), (1282, 14664340), (1420, 13239214), (1633, 11512360), (1796, 10467530), (2245, 8374024), (2564, 7332170), (2840, 6619607), (3205, 5865736), (3266, 5756180), (3592, 5233765), (4490, 4187012), (5128, 3666085), (6410, 2932868), (6532, 2878090), (8165, 2302472), (8980, 2093506), (10327, 1820440), (12820, 1466434), (13064, 1439045), (14743, 1275160), (16330, 1151236), (17960, 1046753), (20654, 910220), (25640, 733217), (29486, 637580), (31879, 589720), (32660, 575618), (41308, 455110), (45511, 413080), (51635, 364088), (58972, 318790), (63758, 294860), (65320, 287809), (73715, 255032), (82616, 227555), (91022, 206540), (103270, 182044), (117944, 159395), (127516, 147430)]