20338740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{313}}^1$

素因数の和:366

約数の個数: 108

約数和(自身を含む): 65320164

約数和(自身を除く): 44981424

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 313, 342, 361, 380, 570, 626, 684, 722, 855, 939, 1083, 1140, 1252, 1444, 1565, 1710, 1805, 1878, 2166, 2817, 3130, 3249, 3420, 3610, 3756, 4332, 4695, 5415, 5634, 5947, 6260, 6498, 7220, 9390, 10830, 11268, 11894, 12996, 14085, 16245, 17841, 18780, 21660, 23788, 28170, 29735, 32490, 35682, 53523, 56340, 59470, 64980, 71364, 89205, 107046, 112993, 118940, 178410, 214092, 225986, 267615, 338979, 356820, 451972, 535230, 564965, 677958, 1016937, 1070460, 1129930, 1355916, 1694895, 2033874, 2259860, 3389790, 4067748, 5084685, 6779580, 10169370, 20338740]

約数ペア:

[(1, 20338740), (2, 10169370), (3, 6779580), (4, 5084685), (5, 4067748), (6, 3389790), (9, 2259860), (10, 2033874), (12, 1694895), (15, 1355916), (18, 1129930), (19, 1070460), (20, 1016937), (30, 677958), (36, 564965), (38, 535230), (45, 451972), (57, 356820), (60, 338979), (76, 267615), (90, 225986), (95, 214092), (114, 178410), (171, 118940), (180, 112993), (190, 107046), (228, 89205), (285, 71364), (313, 64980), (342, 59470), (361, 56340), (380, 53523), (570, 35682), (626, 32490), (684, 29735), (722, 28170), (855, 23788), (939, 21660), (1083, 18780), (1140, 17841), (1252, 16245), (1444, 14085), (1565, 12996), (1710, 11894), (1805, 11268), (1878, 10830), (2166, 9390), (2817, 7220), (3130, 6498), (3249, 6260), (3420, 5947), (3610, 5634), (3756, 5415), (4332, 4695)]