1390040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 3456000

約数和(自身を除く): 2065960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 59, 62, 76, 95, 118, 124, 152, 155, 190, 236, 248, 295, 310, 380, 472, 589, 590, 620, 760, 1121, 1178, 1180, 1240, 1829, 2242, 2356, 2360, 2945, 3658, 4484, 4712, 5605, 5890, 7316, 8968, 9145, 11210, 11780, 14632, 18290, 22420, 23560, 34751, 36580, 44840, 69502, 73160, 139004, 173755, 278008, 347510, 695020, 1390040]

約数ペア:

[(1, 1390040), (2, 695020), (4, 347510), (5, 278008), (8, 173755), (10, 139004), (19, 73160), (20, 69502), (31, 44840), (38, 36580), (40, 34751), (59, 23560), (62, 22420), (76, 18290), (95, 14632), (118, 11780), (124, 11210), (152, 9145), (155, 8968), (190, 7316), (236, 5890), (248, 5605), (295, 4712), (310, 4484), (380, 3658), (472, 2945), (589, 2360), (590, 2356), (620, 2242), (760, 1829), (1121, 1240), (1178, 1180)]