243960

素因数分解:

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

素因数の和:140

約数の個数: 64

約数和(自身を含む): 777600

約数和(自身を除く): 533640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 107, 114, 120, 152, 190, 214, 228, 285, 321, 380, 428, 456, 535, 570, 642, 760, 856, 1070, 1140, 1284, 1605, 2033, 2140, 2280, 2568, 3210, 4066, 4280, 6099, 6420, 8132, 10165, 12198, 12840, 16264, 20330, 24396, 30495, 40660, 48792, 60990, 81320, 121980, 243960]

約数ペア:

[(1, 243960), (2, 121980), (3, 81320), (4, 60990), (5, 48792), (6, 40660), (8, 30495), (10, 24396), (12, 20330), (15, 16264), (19, 12840), (20, 12198), (24, 10165), (30, 8132), (38, 6420), (40, 6099), (57, 4280), (60, 4066), (76, 3210), (95, 2568), (107, 2280), (114, 2140), (120, 2033), (152, 1605), (190, 1284), (214, 1140), (228, 1070), (285, 856), (321, 760), (380, 642), (428, 570), (456, 535)]