39821720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 95212800

約数和(自身を除く): 55391080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 151, 152, 190, 302, 347, 380, 604, 694, 755, 760, 1208, 1388, 1510, 1735, 2776, 2869, 3020, 3470, 5738, 6040, 6593, 6940, 11476, 13186, 13880, 14345, 22952, 26372, 28690, 32965, 52397, 52744, 57380, 65930, 104794, 114760, 131860, 209588, 261985, 263720, 419176, 523970, 995543, 1047940, 1991086, 2095880, 3982172, 4977715, 7964344, 9955430, 19910860, 39821720]

約数ペア:

[(1, 39821720), (2, 19910860), (4, 9955430), (5, 7964344), (8, 4977715), (10, 3982172), (19, 2095880), (20, 1991086), (38, 1047940), (40, 995543), (76, 523970), (95, 419176), (151, 263720), (152, 261985), (190, 209588), (302, 131860), (347, 114760), (380, 104794), (604, 65930), (694, 57380), (755, 52744), (760, 52397), (1208, 32965), (1388, 28690), (1510, 26372), (1735, 22952), (2776, 14345), (2869, 13880), (3020, 13186), (3470, 11476), (5738, 6940), (6040, 6593)]