68819940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{283}}^1$

素因数の和:498

約数の個数: 144

約数和(自身を含む): 240659328

約数和(自身を除く): 171839388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 193, 210, 252, 283, 315, 386, 420, 566, 579, 630, 772, 849, 965, 1132, 1158, 1260, 1351, 1415, 1698, 1737, 1930, 1981, 2316, 2547, 2702, 2830, 2895, 3396, 3474, 3860, 3962, 4053, 4245, 5094, 5404, 5660, 5790, 5943, 6755, 6948, 7924, 8106, 8490, 8685, 9905, 10188, 11580, 11886, 12159, 12735, 13510, 16212, 16980, 17370, 17829, 19810, 20265, 23772, 24318, 25470, 27020, 29715, 34740, 35658, 39620, 40530, 48636, 50940, 54619, 59430, 60795, 71316, 81060, 89145, 109238, 118860, 121590, 163857, 178290, 218476, 243180, 273095, 327714, 356580, 382333, 491571, 546190, 655428, 764666, 819285, 983142, 1092380, 1146999, 1529332, 1638570, 1911665, 1966284, 2293998, 2457855, 3277140, 3440997, 3823330, 4587996, 4915710, 5734995, 6881994, 7646660, 9831420, 11469990, 13763988, 17204985, 22939980, 34409970, 68819940]

約数ペア:

[(1, 68819940), (2, 34409970), (3, 22939980), (4, 17204985), (5, 13763988), (6, 11469990), (7, 9831420), (9, 7646660), (10, 6881994), (12, 5734995), (14, 4915710), (15, 4587996), (18, 3823330), (20, 3440997), (21, 3277140), (28, 2457855), (30, 2293998), (35, 1966284), (36, 1911665), (42, 1638570), (45, 1529332), (60, 1146999), (63, 1092380), (70, 983142), (84, 819285), (90, 764666), (105, 655428), (126, 546190), (140, 491571), (180, 382333), (193, 356580), (210, 327714), (252, 273095), (283, 243180), (315, 218476), (386, 178290), (420, 163857), (566, 121590), (579, 118860), (630, 109238), (772, 89145), (849, 81060), (965, 71316), (1132, 60795), (1158, 59430), (1260, 54619), (1351, 50940), (1415, 48636), (1698, 40530), (1737, 39620), (1930, 35658), (1981, 34740), (2316, 29715), (2547, 27020), (2702, 25470), (2830, 24318), (2895, 23772), (3396, 20265), (3474, 19810), (3860, 17829), (3962, 17370), (4053, 16980), (4245, 16212), (5094, 13510), (5404, 12735), (5660, 12159), (5790, 11886), (5943, 11580), (6755, 10188), (6948, 9905), (7924, 8685), (8106, 8490)]