20685960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1553}}^1$

素因数の和:1607

約数の個数: 96

約数和(自身を含む): 69090840

約数和(自身を除く): 48404880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 222, 296, 333, 360, 370, 444, 555, 666, 740, 888, 1110, 1332, 1480, 1553, 1665, 2220, 2664, 3106, 3330, 4440, 4659, 6212, 6660, 7765, 9318, 12424, 13320, 13977, 15530, 18636, 23295, 27954, 31060, 37272, 46590, 55908, 57461, 62120, 69885, 93180, 111816, 114922, 139770, 172383, 186360, 229844, 279540, 287305, 344766, 459688, 517149, 559080, 574610, 689532, 861915, 1034298, 1149220, 1379064, 1723830, 2068596, 2298440, 2585745, 3447660, 4137192, 5171490, 6895320, 10342980, 20685960]

約数ペア:

[(1, 20685960), (2, 10342980), (3, 6895320), (4, 5171490), (5, 4137192), (6, 3447660), (8, 2585745), (9, 2298440), (10, 2068596), (12, 1723830), (15, 1379064), (18, 1149220), (20, 1034298), (24, 861915), (30, 689532), (36, 574610), (37, 559080), (40, 517149), (45, 459688), (60, 344766), (72, 287305), (74, 279540), (90, 229844), (111, 186360), (120, 172383), (148, 139770), (180, 114922), (185, 111816), (222, 93180), (296, 69885), (333, 62120), (360, 57461), (370, 55908), (444, 46590), (555, 37272), (666, 31060), (740, 27954), (888, 23295), (1110, 18636), (1332, 15530), (1480, 13977), (1553, 13320), (1665, 12424), (2220, 9318), (2664, 7765), (3106, 6660), (3330, 6212), (4440, 4659)]