20208780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1$

素因数の和:364

約数の個数: 108

約数和(自身を含む): 64904112

約数和(自身を除く): 44695332

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, 311, 342, 361, 380, 570, 622, 684, 722, 855, 933, 1083, 1140, 1244, 1444, 1555, 1710, 1805, 1866, 2166, 2799, 3110, 3249, 3420, 3610, 3732, 4332, 4665, 5415, 5598, 5909, 6220, 6498, 7220, 9330, 10830, 11196, 11818, 12996, 13995, 16245, 17727, 18660, 21660, 23636, 27990, 29545, 32490, 35454, 53181, 55980, 59090, 64980, 70908, 88635, 106362, 112271, 118180, 177270, 212724, 224542, 265905, 336813, 354540, 449084, 531810, 561355, 673626, 1010439, 1063620, 1122710, 1347252, 1684065, 2020878, 2245420, 3368130, 4041756, 5052195, 6736260, 10104390, 20208780]

約数ペア:

[(1, 20208780), (2, 10104390), (3, 6736260), (4, 5052195), (5, 4041756), (6, 3368130), (9, 2245420), (10, 2020878), (12, 1684065), (15, 1347252), (18, 1122710), (19, 1063620), (20, 1010439), (30, 673626), (36, 561355), (38, 531810), (45, 449084), (57, 354540), (60, 336813), (76, 265905), (90, 224542), (95, 212724), (114, 177270), (171, 118180), (180, 112271), (190, 106362), (228, 88635), (285, 70908), (311, 64980), (342, 59090), (361, 55980), (380, 53181), (570, 35454), (622, 32490), (684, 29545), (722, 27990), (855, 23636), (933, 21660), (1083, 18660), (1140, 17727), (1244, 16245), (1444, 13995), (1555, 12996), (1710, 11818), (1805, 11196), (1866, 10830), (2166, 9330), (2799, 7220), (3110, 6498), (3249, 6220), (3420, 5909), (3610, 5598), (3732, 5415), (4332, 4665)]