31214720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:206

約数の個数: 128

約数和(自身を含む): 83721600

約数和(自身を除く): 52506880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 151, 152, 160, 170, 190, 272, 302, 304, 320, 323, 340, 380, 544, 604, 608, 640, 646, 680, 755, 760, 1088, 1208, 1216, 1292, 1360, 1510, 1520, 1615, 2176, 2416, 2432, 2567, 2584, 2720, 2869, 3020, 3040, 3230, 4832, 5134, 5168, 5440, 5738, 6040, 6080, 6460, 9664, 10268, 10336, 10880, 11476, 12080, 12160, 12835, 12920, 14345, 19328, 20536, 20672, 22952, 24160, 25670, 25840, 28690, 41072, 41344, 45904, 48320, 48773, 51340, 51680, 57380, 82144, 91808, 96640, 97546, 102680, 103360, 114760, 164288, 183616, 195092, 205360, 206720, 229520, 243865, 328576, 367232, 390184, 410720, 459040, 487730, 780368, 821440, 918080, 975460, 1560736, 1642880, 1836160, 1950920, 3121472, 3901840, 6242944, 7803680, 15607360, 31214720]

約数ペア:

[(1, 31214720), (2, 15607360), (4, 7803680), (5, 6242944), (8, 3901840), (10, 3121472), (16, 1950920), (17, 1836160), (19, 1642880), (20, 1560736), (32, 975460), (34, 918080), (38, 821440), (40, 780368), (64, 487730), (68, 459040), (76, 410720), (80, 390184), (85, 367232), (95, 328576), (128, 243865), (136, 229520), (151, 206720), (152, 205360), (160, 195092), (170, 183616), (190, 164288), (272, 114760), (302, 103360), (304, 102680), (320, 97546), (323, 96640), (340, 91808), (380, 82144), (544, 57380), (604, 51680), (608, 51340), (640, 48773), (646, 48320), (680, 45904), (755, 41344), (760, 41072), (1088, 28690), (1208, 25840), (1216, 25670), (1292, 24160), (1360, 22952), (1510, 20672), (1520, 20536), (1615, 19328), (2176, 14345), (2416, 12920), (2432, 12835), (2567, 12160), (2584, 12080), (2720, 11476), (2869, 10880), (3020, 10336), (3040, 10268), (3230, 9664), (4832, 6460), (5134, 6080), (5168, 6040), (5440, 5738)]