71389280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 179262720

約数和(自身を除く): 107873440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 74, 80, 124, 148, 155, 160, 185, 248, 296, 310, 370, 389, 496, 592, 620, 740, 778, 992, 1147, 1184, 1240, 1480, 1556, 1945, 2294, 2480, 2960, 3112, 3890, 4588, 4960, 5735, 5920, 6224, 7780, 9176, 11470, 12059, 12448, 14393, 15560, 18352, 22940, 24118, 28786, 31120, 36704, 45880, 48236, 57572, 60295, 62240, 71965, 91760, 96472, 115144, 120590, 143930, 183520, 192944, 230288, 241180, 287860, 385888, 446183, 460576, 482360, 575720, 892366, 964720, 1151440, 1784732, 1929440, 2230915, 2302880, 3569464, 4461830, 7138928, 8923660, 14277856, 17847320, 35694640, 71389280]

約数ペア:

[(1, 71389280), (2, 35694640), (4, 17847320), (5, 14277856), (8, 8923660), (10, 7138928), (16, 4461830), (20, 3569464), (31, 2302880), (32, 2230915), (37, 1929440), (40, 1784732), (62, 1151440), (74, 964720), (80, 892366), (124, 575720), (148, 482360), (155, 460576), (160, 446183), (185, 385888), (248, 287860), (296, 241180), (310, 230288), (370, 192944), (389, 183520), (496, 143930), (592, 120590), (620, 115144), (740, 96472), (778, 91760), (992, 71965), (1147, 62240), (1184, 60295), (1240, 57572), (1480, 48236), (1556, 45880), (1945, 36704), (2294, 31120), (2480, 28786), (2960, 24118), (3112, 22940), (3890, 18352), (4588, 15560), (4960, 14393), (5735, 12448), (5920, 12059), (6224, 11470), (7780, 9176)]