2280497920

素因数分解:

$2^8\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1787}}^1$

素因数の和:2805

約数の個数: 72

約数和(自身を含む): 5471043984

約数和(自身を除く): 3190546064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 997, 1280, 1787, 1994, 3574, 3988, 4985, 7148, 7976, 8935, 9970, 14296, 15952, 17870, 19940, 28592, 31904, 35740, 39880, 57184, 63808, 71480, 79760, 114368, 127616, 142960, 159520, 228736, 255232, 285920, 319040, 457472, 571840, 638080, 1143680, 1276160, 1781639, 2287360, 3563278, 7126556, 8908195, 14253112, 17816390, 28506224, 35632780, 57012448, 71265560, 114024896, 142531120, 228049792, 285062240, 456099584, 570124480, 1140248960, 2280497920]

約数ペア:

[(1, 2280497920), (2, 1140248960), (4, 570124480), (5, 456099584), (8, 285062240), (10, 228049792), (16, 142531120), (20, 114024896), (32, 71265560), (40, 57012448), (64, 35632780), (80, 28506224), (128, 17816390), (160, 14253112), (256, 8908195), (320, 7126556), (640, 3563278), (997, 2287360), (1280, 1781639), (1787, 1276160), (1994, 1143680), (3574, 638080), (3988, 571840), (4985, 457472), (7148, 319040), (7976, 285920), (8935, 255232), (9970, 228736), (14296, 159520), (15952, 142960), (17870, 127616), (19940, 114368), (28592, 79760), (31904, 71480), (35740, 63808), (39880, 57184)]