285557120

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 128

約数和(自身を含む): 725587200

約数和(自身を除く): 440030080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 248, 296, 310, 320, 370, 389, 496, 592, 620, 640, 740, 778, 992, 1147, 1184, 1240, 1480, 1556, 1945, 1984, 2294, 2368, 2480, 2960, 3112, 3890, 3968, 4588, 4736, 4960, 5735, 5920, 6224, 7780, 9176, 9920, 11470, 11840, 12059, 12448, 14393, 15560, 18352, 19840, 22940, 23680, 24118, 24896, 28786, 31120, 36704, 45880, 48236, 49792, 57572, 60295, 62240, 71965, 73408, 91760, 96472, 115144, 120590, 124480, 143930, 146816, 183520, 192944, 230288, 241180, 248960, 287860, 367040, 385888, 446183, 460576, 482360, 575720, 734080, 771776, 892366, 921152, 964720, 1151440, 1543552, 1784732, 1842304, 1929440, 2230915, 2302880, 3569464, 3858880, 4461830, 4605760, 7138928, 7717760, 8923660, 9211520, 14277856, 17847320, 28555712, 35694640, 57111424, 71389280, 142778560, 285557120]

約数ペア:

[(1, 285557120), (2, 142778560), (4, 71389280), (5, 57111424), (8, 35694640), (10, 28555712), (16, 17847320), (20, 14277856), (31, 9211520), (32, 8923660), (37, 7717760), (40, 7138928), (62, 4605760), (64, 4461830), (74, 3858880), (80, 3569464), (124, 2302880), (128, 2230915), (148, 1929440), (155, 1842304), (160, 1784732), (185, 1543552), (248, 1151440), (296, 964720), (310, 921152), (320, 892366), (370, 771776), (389, 734080), (496, 575720), (592, 482360), (620, 460576), (640, 446183), (740, 385888), (778, 367040), (992, 287860), (1147, 248960), (1184, 241180), (1240, 230288), (1480, 192944), (1556, 183520), (1945, 146816), (1984, 143930), (2294, 124480), (2368, 120590), (2480, 115144), (2960, 96472), (3112, 91760), (3890, 73408), (3968, 71965), (4588, 62240), (4736, 60295), (4960, 57572), (5735, 49792), (5920, 48236), (6224, 45880), (7780, 36704), (9176, 31120), (9920, 28786), (11470, 24896), (11840, 24118), (12059, 23680), (12448, 22940), (14393, 19840), (15560, 18352)]