320156640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{997}}^1$

素因数の和:1241

約数の個数: 144

約数和(自身を含む): 1098534528

約数和(自身を除く): 778377888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 223, 240, 288, 360, 446, 480, 669, 720, 892, 997, 1115, 1338, 1440, 1784, 1994, 2007, 2230, 2676, 2991, 3345, 3568, 3988, 4014, 4460, 4985, 5352, 5982, 6690, 7136, 7976, 8028, 8920, 8973, 9970, 10035, 10704, 11964, 13380, 14955, 15952, 16056, 17840, 17946, 19940, 20070, 21408, 23928, 26760, 29910, 31904, 32112, 35680, 35892, 39880, 40140, 44865, 47856, 53520, 59820, 64224, 71784, 79760, 80280, 89730, 95712, 107040, 119640, 143568, 159520, 160560, 179460, 222331, 239280, 287136, 321120, 358920, 444662, 478560, 666993, 717840, 889324, 1111655, 1333986, 1435680, 1778648, 2000979, 2223310, 2667972, 3334965, 3557296, 4001958, 4446620, 5335944, 6669930, 7114592, 8003916, 8893240, 10004895, 10671888, 13339860, 16007832, 17786480, 20009790, 21343776, 26679720, 32015664, 35572960, 40019580, 53359440, 64031328, 80039160, 106718880, 160078320, 320156640]

約数ペア:

[(1, 320156640), (2, 160078320), (3, 106718880), (4, 80039160), (5, 64031328), (6, 53359440), (8, 40019580), (9, 35572960), (10, 32015664), (12, 26679720), (15, 21343776), (16, 20009790), (18, 17786480), (20, 16007832), (24, 13339860), (30, 10671888), (32, 10004895), (36, 8893240), (40, 8003916), (45, 7114592), (48, 6669930), (60, 5335944), (72, 4446620), (80, 4001958), (90, 3557296), (96, 3334965), (120, 2667972), (144, 2223310), (160, 2000979), (180, 1778648), (223, 1435680), (240, 1333986), (288, 1111655), (360, 889324), (446, 717840), (480, 666993), (669, 478560), (720, 444662), (892, 358920), (997, 321120), (1115, 287136), (1338, 239280), (1440, 222331), (1784, 179460), (1994, 160560), (2007, 159520), (2230, 143568), (2676, 119640), (2991, 107040), (3345, 95712), (3568, 89730), (3988, 80280), (4014, 79760), (4460, 71784), (4985, 64224), (5352, 59820), (5982, 53520), (6690, 47856), (7136, 44865), (7976, 40140), (8028, 39880), (8920, 35892), (8973, 35680), (9970, 32112), (10035, 31904), (10704, 29910), (11964, 26760), (13380, 23928), (14955, 21408), (15952, 20070), (16056, 19940), (17840, 17946)]