31379280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7691}}^1$

素因数の和:7724

約数の個数: 80

約数和(自身を含む): 103011264

約数和(自身を除く): 71631984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 7691, 15382, 23073, 30764, 38455, 46146, 61528, 76910, 92292, 115365, 123056, 130747, 153820, 184584, 230730, 261494, 307640, 369168, 392241, 461460, 522988, 615280, 653735, 784482, 922920, 1045976, 1307470, 1568964, 1845840, 1961205, 2091952, 2614940, 3137928, 3922410, 5229880, 6275856, 7844820, 10459760, 15689640, 31379280]

約数ペア:

[(1, 31379280), (2, 15689640), (3, 10459760), (4, 7844820), (5, 6275856), (6, 5229880), (8, 3922410), (10, 3137928), (12, 2614940), (15, 2091952), (16, 1961205), (17, 1845840), (20, 1568964), (24, 1307470), (30, 1045976), (34, 922920), (40, 784482), (48, 653735), (51, 615280), (60, 522988), (68, 461460), (80, 392241), (85, 369168), (102, 307640), (120, 261494), (136, 230730), (170, 184584), (204, 153820), (240, 130747), (255, 123056), (272, 115365), (340, 92292), (408, 76910), (510, 61528), (680, 46146), (816, 38455), (1020, 30764), (1360, 23073), (2040, 15382), (4080, 7691)]