20431530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 144

約数和(自身を含む): 63862344

約数和(自身を除く): 43430814

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 41, 42, 45, 49, 63, 70, 82, 90, 98, 105, 113, 123, 126, 147, 205, 210, 226, 245, 246, 287, 294, 315, 339, 369, 410, 441, 490, 565, 574, 615, 630, 678, 735, 738, 791, 861, 882, 1017, 1130, 1230, 1435, 1470, 1582, 1695, 1722, 1845, 2009, 2034, 2205, 2373, 2583, 2870, 3390, 3690, 3955, 4018, 4305, 4410, 4633, 4746, 5085, 5166, 5537, 6027, 7119, 7910, 8610, 9266, 10045, 10170, 11074, 11865, 12054, 12915, 13899, 14238, 16611, 18081, 20090, 23165, 23730, 25830, 27685, 27798, 30135, 32431, 33222, 35595, 36162, 41697, 46330, 49833, 55370, 60270, 64862, 69495, 71190, 83055, 83394, 90405, 97293, 99666, 138990, 162155, 166110, 180810, 194586, 208485, 227017, 249165, 291879, 324310, 416970, 454034, 486465, 498330, 583758, 681051, 972930, 1135085, 1362102, 1459395, 2043153, 2270170, 2918790, 3405255, 4086306, 6810510, 10215765, 20431530]

約数ペア:

[(1, 20431530), (2, 10215765), (3, 6810510), (5, 4086306), (6, 3405255), (7, 2918790), (9, 2270170), (10, 2043153), (14, 1459395), (15, 1362102), (18, 1135085), (21, 972930), (30, 681051), (35, 583758), (41, 498330), (42, 486465), (45, 454034), (49, 416970), (63, 324310), (70, 291879), (82, 249165), (90, 227017), (98, 208485), (105, 194586), (113, 180810), (123, 166110), (126, 162155), (147, 138990), (205, 99666), (210, 97293), (226, 90405), (245, 83394), (246, 83055), (287, 71190), (294, 69495), (315, 64862), (339, 60270), (369, 55370), (410, 49833), (441, 46330), (490, 41697), (565, 36162), (574, 35595), (615, 33222), (630, 32431), (678, 30135), (735, 27798), (738, 27685), (791, 25830), (861, 23730), (882, 23165), (1017, 20090), (1130, 18081), (1230, 16611), (1435, 14238), (1470, 13899), (1582, 12915), (1695, 12054), (1722, 11865), (1845, 11074), (2009, 10170), (2034, 10045), (2205, 9266), (2373, 8610), (2583, 7910), (2870, 7119), (3390, 6027), (3690, 5537), (3955, 5166), (4018, 5085), (4305, 4746), (4410, 4633)]