18967890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 29554350

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 107, 114, 190, 214, 285, 311, 321, 535, 570, 622, 642, 933, 1070, 1555, 1605, 1866, 2033, 3110, 3210, 4066, 4665, 5909, 6099, 9330, 10165, 11818, 12198, 17727, 20330, 29545, 30495, 33277, 35454, 59090, 60990, 66554, 88635, 99831, 166385, 177270, 199662, 332770, 499155, 632263, 998310, 1264526, 1896789, 3161315, 3793578, 6322630, 9483945, 18967890]

約数ペア:

[(1, 18967890), (2, 9483945), (3, 6322630), (5, 3793578), (6, 3161315), (10, 1896789), (15, 1264526), (19, 998310), (30, 632263), (38, 499155), (57, 332770), (95, 199662), (107, 177270), (114, 166385), (190, 99831), (214, 88635), (285, 66554), (311, 60990), (321, 59090), (535, 35454), (570, 33277), (622, 30495), (642, 29545), (933, 20330), (1070, 17727), (1555, 12198), (1605, 11818), (1866, 10165), (2033, 9330), (3110, 6099), (3210, 5909), (4066, 4665)]