20122140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{929}}^1$

素因数の和:979

約数の個数: 72

約数和(自身を含む): 59527440

約数和(自身を除く): 39405300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 361, 380, 570, 722, 929, 1083, 1140, 1444, 1805, 1858, 2166, 2787, 3610, 3716, 4332, 4645, 5415, 5574, 7220, 9290, 10830, 11148, 13935, 17651, 18580, 21660, 27870, 35302, 52953, 55740, 70604, 88255, 105906, 176510, 211812, 264765, 335369, 353020, 529530, 670738, 1006107, 1059060, 1341476, 1676845, 2012214, 3353690, 4024428, 5030535, 6707380, 10061070, 20122140]

約数ペア:

[(1, 20122140), (2, 10061070), (3, 6707380), (4, 5030535), (5, 4024428), (6, 3353690), (10, 2012214), (12, 1676845), (15, 1341476), (19, 1059060), (20, 1006107), (30, 670738), (38, 529530), (57, 353020), (60, 335369), (76, 264765), (95, 211812), (114, 176510), (190, 105906), (228, 88255), (285, 70604), (361, 55740), (380, 52953), (570, 35302), (722, 27870), (929, 21660), (1083, 18580), (1140, 17651), (1444, 13935), (1805, 11148), (1858, 10830), (2166, 9290), (2787, 7220), (3610, 5574), (3716, 5415), (4332, 4645)]