2019651760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{15749}}^1$

素因数の和:15998

約数の個数: 80

約数和(自身を含む): 5390280000

約数和(自身を除く): 3370628240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 280, 458, 560, 916, 1145, 1603, 1832, 2290, 3206, 3664, 4580, 6412, 8015, 9160, 12824, 15749, 16030, 18320, 25648, 31498, 32060, 62996, 64120, 78745, 110243, 125992, 128240, 157490, 220486, 251984, 314980, 440972, 551215, 629960, 881944, 1102430, 1259920, 1763888, 2204860, 3606521, 4409720, 7213042, 8819440, 14426084, 18032605, 25245647, 28852168, 36065210, 50491294, 57704336, 72130420, 100982588, 126228235, 144260840, 201965176, 252456470, 288521680, 403930352, 504912940, 1009825880, 2019651760]

約数ペア:

[(1, 2019651760), (2, 1009825880), (4, 504912940), (5, 403930352), (7, 288521680), (8, 252456470), (10, 201965176), (14, 144260840), (16, 126228235), (20, 100982588), (28, 72130420), (35, 57704336), (40, 50491294), (56, 36065210), (70, 28852168), (80, 25245647), (112, 18032605), (140, 14426084), (229, 8819440), (280, 7213042), (458, 4409720), (560, 3606521), (916, 2204860), (1145, 1763888), (1603, 1259920), (1832, 1102430), (2290, 881944), (3206, 629960), (3664, 551215), (4580, 440972), (6412, 314980), (8015, 251984), (9160, 220486), (12824, 157490), (15749, 128240), (16030, 125992), (18320, 110243), (25648, 78745), (31498, 64120), (32060, 62996)]