19897560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2909}}^1$

素因数の和:2945

約数の個数: 96

約数和(自身を含む): 68094000

約数和(自身を除く): 48196440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2909, 3420, 5818, 6840, 8727, 11636, 14545, 17454, 23272, 26181, 29090, 34908, 43635, 52362, 55271, 58180, 69816, 87270, 104724, 110542, 116360, 130905, 165813, 174540, 209448, 221084, 261810, 276355, 331626, 349080, 442168, 497439, 523620, 552710, 663252, 829065, 994878, 1047240, 1105420, 1326504, 1658130, 1989756, 2210840, 2487195, 3316260, 3979512, 4974390, 6632520, 9948780, 19897560]

約数ペア:

[(1, 19897560), (2, 9948780), (3, 6632520), (4, 4974390), (5, 3979512), (6, 3316260), (8, 2487195), (9, 2210840), (10, 1989756), (12, 1658130), (15, 1326504), (18, 1105420), (19, 1047240), (20, 994878), (24, 829065), (30, 663252), (36, 552710), (38, 523620), (40, 497439), (45, 442168), (57, 349080), (60, 331626), (72, 276355), (76, 261810), (90, 221084), (95, 209448), (114, 174540), (120, 165813), (152, 130905), (171, 116360), (180, 110542), (190, 104724), (228, 87270), (285, 69816), (342, 58180), (360, 55271), (380, 52362), (456, 43635), (570, 34908), (684, 29090), (760, 26181), (855, 23272), (1140, 17454), (1368, 14545), (1710, 11636), (2280, 8727), (2909, 6840), (3420, 5818)]